diff --git a/core/server/data/migrations/versions/4.46/2022-04-13-12-57-add-uuid-column-to-newsletters.js b/core/server/data/migrations/versions/4.46/2022-04-13-12-57-add-uuid-column-to-newsletters.js
new file mode 100644
index 0000000000..57b57f2045
--- /dev/null
+++ b/core/server/data/migrations/versions/4.46/2022-04-13-12-57-add-uuid-column-to-newsletters.js
@@ -0,0 +1,8 @@
+const {createAddColumnMigration} = require('../../utils');
+
+module.exports = createAddColumnMigration('newsletters', 'uuid', {
+    type: 'string',
+    maxlength: 36,
+    nullable: true,
+    unique: true
+});
diff --git a/core/server/data/migrations/versions/4.46/2022-04-13-12-58-fill-uuid-for-newsletters.js b/core/server/data/migrations/versions/4.46/2022-04-13-12-58-fill-uuid-for-newsletters.js
new file mode 100644
index 0000000000..27f0584597
--- /dev/null
+++ b/core/server/data/migrations/versions/4.46/2022-04-13-12-58-fill-uuid-for-newsletters.js
@@ -0,0 +1,19 @@
+const logging = require('@tryghost/logging');
+const uuid = require('uuid');
+const {createTransactionalMigration} = require('../../utils');
+
+module.exports = createTransactionalMigration(
+    async function up(knex) {
+        const newslettersWithoutUUID = await knex.select('id').from('newsletters').whereNull('uuid');
+
+        logging.info(`Adding uuid field value to ${newslettersWithoutUUID.length} newsletters.`);
+
+        // eslint-disable-next-line no-restricted-syntax
+        for (const newsletter of newslettersWithoutUUID) {
+            await knex('newsletters').update('uuid', uuid.v4()).where('id', newsletter.id);
+        }
+    },
+    async function down() {
+        // Not required: we would lose information here.
+    }
+);
diff --git a/core/server/data/migrations/versions/4.46/2022-04-13-12-59-drop-nullable-uuid-newsletters.js b/core/server/data/migrations/versions/4.46/2022-04-13-12-59-drop-nullable-uuid-newsletters.js
new file mode 100644
index 0000000000..aaea318ab0
--- /dev/null
+++ b/core/server/data/migrations/versions/4.46/2022-04-13-12-59-drop-nullable-uuid-newsletters.js
@@ -0,0 +1,3 @@
+const {createDropNullableMigration} = require('../../utils');
+
+module.exports = createDropNullableMigration('newsletters', 'uuid');
diff --git a/core/server/data/migrations/versions/4.46/2022-04-13-13-00-add-default-newsletter.js b/core/server/data/migrations/versions/4.46/2022-04-13-13-00-add-default-newsletter.js
index 82c75de796..e6647f928f 100644
--- a/core/server/data/migrations/versions/4.46/2022-04-13-13-00-add-default-newsletter.js
+++ b/core/server/data/migrations/versions/4.46/2022-04-13-13-00-add-default-newsletter.js
@@ -1,4 +1,5 @@
 const ObjectId = require('bson-objectid');
+const uuid = require('uuid');
 const logging = require('@tryghost/logging');
 const startsWith = require('lodash/startsWith');
 const {createTransactionalMigration} = require('../../utils');
@@ -6,6 +7,7 @@ const {createTransactionalMigration} = require('../../utils');
 // This uses the default settings from core/server/data/schema/default-settings/default-settings.json
 const newsletter = {
     id: (new ObjectId()).toHexString(),
+    uuid: uuid.v4(),
     name: 'Ghost',
     description: '',
     slug: 'default-newsletter',
diff --git a/core/server/data/schema/schema.js b/core/server/data/schema/schema.js
index 4f044a8f20..927c7447ad 100644
--- a/core/server/data/schema/schema.js
+++ b/core/server/data/schema/schema.js
@@ -10,6 +10,7 @@
 module.exports = {
     newsletters: {
         id: {type: 'string', maxlength: 24, nullable: false, primary: true},
+        uuid: {type: 'string', maxlength: 36, nullable: false, unique: true, validations: {isUUID: true}},
         name: {type: 'string', maxlength: 191, nullable: false, unique: true},
         description: {type: 'string', maxlength: 2000, nullable: true},
         slug: {type: 'string', maxlength: 191, nullable: false, unique: true},
diff --git a/core/server/models/newsletter.js b/core/server/models/newsletter.js
index c832ce978e..7798b5e37d 100644
--- a/core/server/models/newsletter.js
+++ b/core/server/models/newsletter.js
@@ -1,10 +1,12 @@
 const ghostBookshelf = require('./base');
 const ObjectID = require('bson-objectid');
+const uuid = require('uuid');
 
 const Newsletter = ghostBookshelf.Model.extend({
     tableName: 'newsletters',
 
     defaults: {
+        uuid: uuid.v4(),
         sender_reply_to: 'newsletter',
         status: 'active',
         visibility: 'members',
diff --git a/test/e2e-api/admin/__snapshots__/members-newsletters.test.js.snap b/test/e2e-api/admin/__snapshots__/members-newsletters.test.js.snap
index 85b8fadd32..8c0ec12b3e 100644
--- a/test/e2e-api/admin/__snapshots__/members-newsletters.test.js.snap
+++ b/test/e2e-api/admin/__snapshots__/members-newsletters.test.js.snap
@@ -436,7 +436,7 @@ exports[`Members API - With Newsletters - compat mode Can fetch members who are
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "10814",
+  "content-length": "11136",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -662,7 +662,7 @@ exports[`Members API - With Newsletters Can fetch members who are subscribed 2:
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "10814",
+  "content-length": "11136",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
diff --git a/test/e2e-api/admin/__snapshots__/members.test.js.snap b/test/e2e-api/admin/__snapshots__/members.test.js.snap
index 20fae09f99..19c248c857 100644
--- a/test/e2e-api/admin/__snapshots__/members.test.js.snap
+++ b/test/e2e-api/admin/__snapshots__/members.test.js.snap
@@ -141,7 +141,7 @@ exports[`Members API Can add a subscription 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "2009",
+  "content-length": "2055",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -219,7 +219,7 @@ exports[`Members API Can add a subscription 4: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "2009",
+  "content-length": "2055",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -267,6 +267,7 @@ Object {
           "title_alignment": "center",
           "title_font_category": "serif",
           "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+          "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
           "visibility": "members",
         },
       ],
@@ -286,7 +287,7 @@ exports[`Members API Can add and edit with custom newsletters 2: [headers] 1`] =
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1248",
+  "content-length": "1294",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/members\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -335,6 +336,7 @@ Object {
           "title_alignment": "center",
           "title_font_category": "serif",
           "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+          "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
           "visibility": "members",
         },
       ],
@@ -354,7 +356,7 @@ exports[`Members API Can add and edit with custom newsletters 4: [headers] 1`] =
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1247",
+  "content-length": "1293",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -402,6 +404,7 @@ Object {
           "title_alignment": "center",
           "title_font_category": "sans_serif",
           "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+          "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
           "visibility": "members",
         },
         Object {
@@ -427,6 +430,7 @@ Object {
           "title_alignment": "center",
           "title_font_category": "serif",
           "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+          "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
           "visibility": "members",
         },
       ],
@@ -446,7 +450,7 @@ exports[`Members API Can add and send a signup confirmation email 2: [headers] 1
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1692",
+  "content-length": "1784",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": Any<String>,
@@ -498,7 +502,7 @@ exports[`Members API Can add complimentary subscription (out of date) 2: [header
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1057",
+  "content-length": "1103",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/members\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -540,7 +544,7 @@ exports[`Members API Can add complimentary subscription (out of date) 4: [header
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1057",
+  "content-length": "1103",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -737,7 +741,7 @@ exports[`Members API Can browse 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "12775",
+  "content-length": "13097",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -787,7 +791,7 @@ exports[`Members API Can browse with filter 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1282",
+  "content-length": "1328",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -837,7 +841,7 @@ exports[`Members API Can browse with search 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1282",
+  "content-length": "1328",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -885,6 +889,7 @@ Object {
           "title_alignment": "center",
           "title_font_category": "sans_serif",
           "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+          "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
           "visibility": "members",
         },
       ],
@@ -904,7 +909,7 @@ exports[`Members API Can create a member with an existing complimentary subscrip
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "2387",
+  "content-length": "2433",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/members\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -953,6 +958,7 @@ Object {
           "title_alignment": "center",
           "title_font_category": "sans_serif",
           "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+          "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
           "visibility": "members",
         },
       ],
@@ -972,7 +978,7 @@ exports[`Members API Can create a member with an existing paid subscription 2: [
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "2462",
+  "content-length": "2508",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/members\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -1021,6 +1027,7 @@ Object {
           "title_alignment": "center",
           "title_font_category": "sans_serif",
           "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+          "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
           "visibility": "members",
         },
       ],
@@ -1055,7 +1062,7 @@ exports[`Members API Can create a new member with a product (complementary) 2: [
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "2343",
+  "content-length": "2389",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/members\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -1107,7 +1114,7 @@ exports[`Members API Can destroy 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1667",
+  "content-length": "1759",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/members\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -1188,7 +1195,7 @@ exports[`Members API Can edit by id 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1075",
+  "content-length": "1121",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/members\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -1417,7 +1424,7 @@ exports[`Members API Can filter by paid status 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "9385",
+  "content-length": "9569",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -1530,7 +1537,7 @@ exports[`Members API Can filter on newsletter slug 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "8009",
+  "content-length": "8285",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -1714,7 +1721,7 @@ exports[`Members API Can ignore any unknown includes 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "9385",
+  "content-length": "9569",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -2149,7 +2156,7 @@ exports[`Members API Can read 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1208",
+  "content-length": "1254",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -2191,7 +2198,7 @@ exports[`Members API Can read and include email_recipients 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1230",
+  "content-length": "1276",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -2232,7 +2239,7 @@ exports[`Members API Can subscribe to a newsletter 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1065",
+  "content-length": "1111",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/members\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -2274,7 +2281,7 @@ exports[`Members API Can subscribe to a newsletter 4: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1070",
+  "content-length": "1116",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -2353,7 +2360,7 @@ exports[`Members API Search by case-insensitive email MEMBER2 receives member wi
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1129",
+  "content-length": "1175",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -2403,7 +2410,7 @@ exports[`Members API Search by case-insensitive name egg receives member with na
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1282",
+  "content-length": "1328",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -2481,7 +2488,7 @@ exports[`Members API Search for paid members retrieves member with email paid@te
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "2338",
+  "content-length": "2384",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -2522,7 +2529,7 @@ exports[`Members API Subscribes to default newsletters 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "1668",
+  "content-length": "1760",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/members\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
diff --git a/test/e2e-api/admin/__snapshots__/newsletters.test.js.snap b/test/e2e-api/admin/__snapshots__/newsletters.test.js.snap
index 748b837f9e..8b16317479 100644
--- a/test/e2e-api/admin/__snapshots__/newsletters.test.js.snap
+++ b/test/e2e-api/admin/__snapshots__/newsletters.test.js.snap
@@ -29,6 +29,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
   ],
@@ -39,7 +40,7 @@ exports[`Newsletters API Can add a newsletter - and subscribe existing members 2
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "699",
+  "content-length": "745",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/newsletters\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -80,6 +81,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
   ],
@@ -90,7 +92,7 @@ exports[`Newsletters API Can add a newsletter - with custom sender_email 2: [hea
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "708",
+  "content-length": "754",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/newsletters\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -126,6 +128,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
   ],
@@ -136,7 +139,7 @@ exports[`Newsletters API Can add a newsletter 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "606",
+  "content-length": "652",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "location": StringMatching /https\\?:\\\\/\\\\/\\.\\*\\?\\\\/newsletters\\\\/\\[a-f0-9\\]\\{24\\}\\\\//,
@@ -182,6 +185,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "sans_serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
     Object {
@@ -207,6 +211,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
     Object {
@@ -232,6 +237,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
     Object {
@@ -257,6 +263,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
   ],
@@ -267,7 +274,7 @@ exports[`Newsletters API Can browse newsletters 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "2506",
+  "content-length": "2690",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -306,6 +313,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
   ],
@@ -316,7 +324,7 @@ exports[`Newsletters API Can edit a newsletters and update the sender_email when
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "678",
+  "content-length": "724",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -351,6 +359,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
   ],
@@ -361,7 +370,7 @@ exports[`Newsletters API Can edit newsletters 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "626",
+  "content-length": "672",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -410,6 +419,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "sans_serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
     Object {
@@ -439,6 +449,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
     Object {
@@ -468,6 +479,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
     Object {
@@ -497,6 +509,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
   ],
@@ -507,7 +520,7 @@ exports[`Newsletters API Can include members & posts counts when browsing newsle
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "2634",
+  "content-length": "2818",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -545,6 +558,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
   ],
@@ -555,7 +569,7 @@ exports[`Newsletters API Can include members & posts counts when reading a newsl
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "651",
+  "content-length": "697",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -589,6 +603,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
   ],
@@ -599,7 +614,7 @@ exports[`Newsletters API Can read a newsletter 2: [headers] 1`] = `
 Object {
   "access-control-allow-origin": "http://127.0.0.1:2369",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "619",
+  "content-length": "665",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Origin, Accept-Encoding",
@@ -633,6 +648,7 @@ Object {
       "title_alignment": "center",
       "title_font_category": "serif",
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
     },
   ],
diff --git a/test/e2e-api/admin/members.test.js b/test/e2e-api/admin/members.test.js
index 3f6ec7b36d..2af86eafec 100644
--- a/test/e2e-api/admin/members.test.js
+++ b/test/e2e-api/admin/members.test.js
@@ -34,6 +34,7 @@ async function getNewsletters() {
 
 const newsletterSnapshot = {
     id: anyObjectId,
+    uuid: anyUuid,
     created_at: anyISODateTime,
     updated_at: anyISODateTime
 };
diff --git a/test/e2e-api/admin/newsletters.test.js b/test/e2e-api/admin/newsletters.test.js
index 59c97051a5..544d6505a5 100644
--- a/test/e2e-api/admin/newsletters.test.js
+++ b/test/e2e-api/admin/newsletters.test.js
@@ -1,5 +1,6 @@
 const {agentProvider, mockManager, fixtureManager, matchers} = require('../../utils/e2e-framework');
-const {anyEtag, anyObjectId, anyISODateTime, anyLocationFor} = matchers;
+const {anyEtag, anyObjectId, anyUuid, anyISODateTime, anyLocationFor} = matchers;
+const uuid = require('uuid');
 
 const assert = require('assert');
 
@@ -13,6 +14,7 @@ const assertMemberRelationCount = async (newsletterId, expectedCount) => {
 
 const newsletterSnapshot = {
     id: anyObjectId,
+    uuid: anyUuid,
     created_at: anyISODateTime,
     updated_at: anyISODateTime
 };
@@ -86,6 +88,7 @@ describe('Newsletters API', function () {
 
     it('Can add a newsletter', async function () {
         const newsletter = {
+            uuid: uuid.v4(),
             name: 'My test newsletter',
             sender_name: 'Test',
             sender_email: null,
@@ -115,6 +118,7 @@ describe('Newsletters API', function () {
 
     it('Can add a newsletter - with custom sender_email', async function () {
         const newsletter = {
+            uuid: uuid.v4(),
             name: 'My test newsletter with custom sender_email',
             sender_name: 'Test',
             sender_email: 'test@example.com',
@@ -152,6 +156,7 @@ describe('Newsletters API', function () {
 
     it('Can add a newsletter - and subscribe existing members', async function () {
         const newsletter = {
+            uuid: uuid.v4(),
             name: 'New newsletter with existing members subscribed',
             sender_name: 'Test',
             sender_email: null,
diff --git a/test/unit/server/data/schema/integrity.test.js b/test/unit/server/data/schema/integrity.test.js
index 15ee636ea6..dd85085af8 100644
--- a/test/unit/server/data/schema/integrity.test.js
+++ b/test/unit/server/data/schema/integrity.test.js
@@ -35,7 +35,7 @@ const validateRouteSettings = require('../../../../../core/server/services/route
  */
 describe('DB version integrity', function () {
     // Only these variables should need updating
-    const currentSchemaHash = '777e3e42ce2982d0ccae04982f353576';
+    const currentSchemaHash = 'cad4a9890ab928de593e4c682a2cd326';
     const currentFixturesHash = '4924616fbc51dd0ccef62ae04b4708f9';
     const currentSettingsHash = 'ffd899a82b0ad2886e92d8244bcbca6a';
     const currentRoutesHash = '3d180d52c663d173a6be791ef411ed01';
diff --git a/test/utils/fixtures/data-generator.js b/test/utils/fixtures/data-generator.js
index 25368b194b..6f3a72fe40 100644
--- a/test/utils/fixtures/data-generator.js
+++ b/test/utils/fixtures/data-generator.js
@@ -951,6 +951,7 @@ DataGenerator.forKnex = (function () {
         const newObj = _.cloneDeep(overrides);
         return _.defaults(newObj, {
             id: ObjectId().toHexString(),
+            uuid: uuid.v4(),
             slug: 'daily-newsletter',
             name: 'Daily Newsletter',
             sender_name: 'Jamie Larsen',