diff --git a/packages/core/src/libraries/sign-in-experience/index.test.ts b/packages/core/src/libraries/sign-in-experience/index.test.ts
index 0f9d30712..1aa8c8d3c 100644
--- a/packages/core/src/libraries/sign-in-experience/index.test.ts
+++ b/packages/core/src/libraries/sign-in-experience/index.test.ts
@@ -19,6 +19,7 @@ import { mockLogtoConfigsLibrary } from '#src/test-utils/mock-libraries.js';
 
 import { createCloudConnectionLibrary } from '../cloud-connection.js';
 import { createConnectorLibrary } from '../connector.js';
+import { type SsoConnectorLibrary } from '../sso-connector.js';
 
 const { jest } = import.meta;
 
@@ -40,11 +41,12 @@ const signInExperiences = {
 };
 const { findDefaultSignInExperience, updateDefaultSignInExperience } = signInExperiences;
 
-const ssoConnectorLibrary = {
+const ssoConnectorLibrary: jest.Mocked<SsoConnectorLibrary> = {
   getSsoConnectors: jest.fn(),
   getSsoConnectorById: jest.fn(),
   getAvailableSsoConnectors: jest.fn(),
   createSsoConnectorIdpInitiatedAuthConfig: jest.fn(),
+  updateSsoConnectorIdpInitiatedAuthConfig: jest.fn(),
 };
 
 const { MockQueries } = await import('#src/test-utils/tenant.js');
diff --git a/packages/core/src/libraries/sso-connector.ts b/packages/core/src/libraries/sso-connector.ts
index c04c43521..4a0367610 100644
--- a/packages/core/src/libraries/sso-connector.ts
+++ b/packages/core/src/libraries/sso-connector.ts
@@ -81,10 +81,37 @@ export const createSsoConnectorLibrary = (queries: Queries) => {
     return ssoConnectors.insertIdpInitiatedAuthConfig(data);
   };
 
+  const updateSsoConnectorIdpInitiatedAuthConfig = async (
+    connectorId: string,
+    set: Pick<
+      Partial<CreateSsoConnectorIdpInitiatedAuthConfig>,
+      'defaultApplicationId' | 'redirectUri' | 'authParameters'
+    >
+  ) => {
+    const { defaultApplicationId } = set;
+
+    if (defaultApplicationId) {
+      // Throws an 404 error if the application is not found
+      const application = await applications.findApplicationById(defaultApplicationId);
+
+      assertThat(
+        application.type === ApplicationType.Traditional && !application.isThirdParty,
+        new RequestError('connector.saml_idp_initiated_auth_invalid_application_type')
+      );
+    }
+
+    return ssoConnectors.updateIdpInitiatedAuthConfig({
+      set,
+      where: { connectorId },
+      jsonbMode: 'replace',
+    });
+  };
+
   return {
     getSsoConnectors,
     getAvailableSsoConnectors,
     getSsoConnectorById,
     createSsoConnectorIdpInitiatedAuthConfig,
+    updateSsoConnectorIdpInitiatedAuthConfig,
   };
 };
diff --git a/packages/core/src/queries/sso-connectors.ts b/packages/core/src/queries/sso-connectors.ts
index 6184edb5b..3d3c664c7 100644
--- a/packages/core/src/queries/sso-connectors.ts
+++ b/packages/core/src/queries/sso-connectors.ts
@@ -13,6 +13,7 @@ import { convertToIdentifiers } from '#src/utils/sql.js';
 
 import { buildInsertIntoWithPool } from '../database/insert-into.js';
 import { buildUpdateWhereWithPool } from '../database/update-where.js';
+import { DeletionError } from '../errors/SlonikError/index.js';
 
 const {
   table: ssoConnectorIdpInitiatedAuthConfigsTable,
@@ -66,4 +67,15 @@ export default class SsoConnectorQueries extends SchemaQueries<
       WHERE ${ssoConnectorIdpInitiatedAuthConfigsFields.connectorId}=${connectorId}
     `);
   }
+
+  async deleteIdpInitiatedAuthConfigByConnectorId(connectorId: string) {
+    const { rowCount } = await this.pool.query(sql`
+      DELETE FROM ${ssoConnectorIdpInitiatedAuthConfigsTable}
+      WHERE ${ssoConnectorIdpInitiatedAuthConfigsFields.connectorId}=${connectorId}
+    `);
+
+    if (rowCount < 1) {
+      throw new DeletionError(SsoConnectorIdpInitiatedAuthConfigs.table);
+    }
+  }
 }
diff --git a/packages/core/src/routes/interaction/utils/single-sign-on-guard.test.ts b/packages/core/src/routes/interaction/utils/single-sign-on-guard.test.ts
index a5e04f753..d61256701 100644
--- a/packages/core/src/routes/interaction/utils/single-sign-on-guard.test.ts
+++ b/packages/core/src/routes/interaction/utils/single-sign-on-guard.test.ts
@@ -9,11 +9,12 @@ const { jest } = import.meta;
 
 const getAvailableSsoConnectorsMock = jest.fn();
 
-const mockSsoConnectorLibrary: SsoConnectorLibrary = {
+const mockSsoConnectorLibrary: jest.Mocked<SsoConnectorLibrary> = {
   getAvailableSsoConnectors: getAvailableSsoConnectorsMock,
   getSsoConnectors: jest.fn(),
   getSsoConnectorById: jest.fn(),
   createSsoConnectorIdpInitiatedAuthConfig: jest.fn(),
+  updateSsoConnectorIdpInitiatedAuthConfig: jest.fn(),
 };
 
 describe('verifyEmailIdentifier tests', () => {
diff --git a/packages/core/src/routes/sso-connector/idp-initiated-auth-config.openapi.json b/packages/core/src/routes/sso-connector/idp-initiated-auth-config.openapi.json
index da05cd422..3df9a81c5 100644
--- a/packages/core/src/routes/sso-connector/idp-initiated-auth-config.openapi.json
+++ b/packages/core/src/routes/sso-connector/idp-initiated-auth-config.openapi.json
@@ -51,6 +51,52 @@
             "description": "The request body is invalid. The SSO connector is not a SAML connector or the application is not a Traditional web application."
           }
         }
+      },
+      "patch": {
+        "summary": "Update IdP initiated auth config",
+        "description": "Partially update the IdP initiated authentication config of the given SAML SSO connector.",
+        "requestBody": {
+          "content": {
+            "application/json": {
+              "schema": {
+                "properties": {
+                  "defaultApplicationId": {
+                    "description": "The unique identifier for the application that users will sign in to using IdP initiated authentication. The application type must be `Traditional` and cannot be a third-party application."
+                  },
+                  "redirectUri": {
+                    "description": "The sign-in redirect URI for the application. This URI must be registered in the application's OIDC client metadata. If not provided, Logto will use the first registered redirect URI of the application."
+                  },
+                  "authParameters": {
+                    "description": "The additional parameters to be sent to the application's OIDC authorization endpoint, e.g. `resources` and `scopes`."
+                  }
+                }
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "The updated IdP initiated auth config."
+          },
+          "404": {
+            "description": "IdP initiated auth config not found for the given SSO connector or the provided application ID is not found."
+          },
+          "400": {
+            "description": "The request body is invalid. The application is not a first-party Traditional web application."
+          }
+        }
+      },
+      "delete": {
+        "summary": "Delete IdP initiated auth config",
+        "description": "Delete the IdP initiated authentication config of the given SAML SSO connector.",
+        "responses": {
+          "204": {
+            "description": "The IdP initiated auth config has been deleted."
+          },
+          "404": {
+            "description": "IdP initiated auth config not found for the given SSO connector."
+          }
+        }
       }
     }
   }
diff --git a/packages/core/src/routes/sso-connector/idp-initiated-auth-config.ts b/packages/core/src/routes/sso-connector/idp-initiated-auth-config.ts
index 46e9beeaf..fe3f6b670 100644
--- a/packages/core/src/routes/sso-connector/idp-initiated-auth-config.ts
+++ b/packages/core/src/routes/sso-connector/idp-initiated-auth-config.ts
@@ -21,7 +21,11 @@ export default function ssoConnectorIdpInitiatedAuthConfigRoutes<T extends Manag
     {
       queries,
       libraries: {
-        ssoConnectors: { getSsoConnectorById, createSsoConnectorIdpInitiatedAuthConfig },
+        ssoConnectors: {
+          getSsoConnectorById,
+          createSsoConnectorIdpInitiatedAuthConfig,
+          updateSsoConnectorIdpInitiatedAuthConfig,
+        },
       },
     },
   ] = args;
@@ -95,4 +99,50 @@ export default function ssoConnectorIdpInitiatedAuthConfigRoutes<T extends Manag
       return next();
     }
   );
+
+  router.patch(
+    pathPrefix,
+    koaGuard({
+      body: SsoConnectorIdpInitiatedAuthConfigs.updateGuard.pick({
+        defaultApplicationId: true,
+        redirectUri: true,
+        authParameters: true,
+      }),
+      params: z.object({ id: z.string().min(1) }),
+      response: SsoConnectorIdpInitiatedAuthConfigs.guard,
+      status: [200, 400, 404],
+    }),
+    async (ctx, next) => {
+      const {
+        body,
+        params: { id },
+      } = ctx.guard;
+
+      const config = await updateSsoConnectorIdpInitiatedAuthConfig(id, body);
+
+      ctx.body = config;
+      ctx.status = 200;
+
+      return next();
+    }
+  );
+
+  router.delete(
+    pathPrefix,
+    koaGuard({
+      params: z.object({ id: z.string().min(1) }),
+      status: [204, 404],
+    }),
+    async (ctx, next) => {
+      const {
+        params: { id },
+      } = ctx.guard;
+
+      await queries.ssoConnectors.deleteIdpInitiatedAuthConfigByConnectorId(id);
+
+      ctx.status = 204;
+
+      return next();
+    }
+  );
 }
diff --git a/packages/integration-tests/src/api/sso-connector.ts b/packages/integration-tests/src/api/sso-connector.ts
index a367ae2f2..66168c5fa 100644
--- a/packages/integration-tests/src/api/sso-connector.ts
+++ b/packages/integration-tests/src/api/sso-connector.ts
@@ -115,6 +115,26 @@ export class SsoConnectorApi {
       .json<SsoConnectorIdpInitiatedAuthConfig>();
   }
 
+  async updateSsoConnectorIdpInitiatedAuthConfig(
+    connectorId: string,
+    data: Pick<
+      Partial<CreateSsoConnectorIdpInitiatedAuthConfig>,
+      'defaultApplicationId' | 'redirectUri' | 'authParameters'
+    >
+  ) {
+    return authedAdminApi
+      .patch(`sso-connectors/${connectorId}/idp-initiated-auth-config`, {
+        json: data,
+      })
+      .json<SsoConnectorIdpInitiatedAuthConfig>();
+  }
+
+  async deleteSsoConnectorIdpInitiatedAuthConfig(connectorId: string) {
+    return authedAdminApi
+      .delete(`sso-connectors/${connectorId}/idp-initiated-auth-config`)
+      .json<void>();
+  }
+
   get firstConnectorId() {
     return Array.from(this.connectorInstances.keys())[0];
   }
diff --git a/packages/integration-tests/src/tests/api/sso-connectors/sso-connector-idp-initiated-auth-config.test.ts b/packages/integration-tests/src/tests/api/sso-connectors/sso-connector-idp-initiated-auth-config.test.ts
index 1215cd0a5..817259fa5 100644
--- a/packages/integration-tests/src/tests/api/sso-connectors/sso-connector-idp-initiated-auth-config.test.ts
+++ b/packages/integration-tests/src/tests/api/sso-connectors/sso-connector-idp-initiated-auth-config.test.ts
@@ -39,117 +39,201 @@ devFeatureTest.describe('SAML IdP initiated authentication config', () => {
     await ssoConnectorsApi.cleanUp();
   });
 
-  it('should throw 404 if the connector is not found', async () => {
-    const defaultApplicationId = applications.get('traditional')!.id;
+  describe('Set IdP-initiated authentication configuration', () => {
+    it('should throw 404 if the connector is not found', async () => {
+      const defaultApplicationId = applications.get('traditional')!.id;
 
-    await expectRejects(
-      ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
-        connectorId: 'not-found',
-        defaultApplicationId,
-        redirectUri: 'https://example.com',
-      }),
-      {
-        code: 'entity.not_exists_with_id',
-        status: 404,
-      }
-    );
-  });
-
-  it('should throw 400 if the connector is not SAML', async () => {
-    const defaultApplicationId = applications.get('traditional')!.id;
-
-    await expectRejects(
-      ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
-        connectorId: ssoConnectors.get('oidc')!.id,
-        defaultApplicationId,
-        redirectUri: 'https://example.com',
-      }),
-      {
-        code: 'connector.saml_only_idp_initiated_auth',
-        status: 400,
-      }
-    );
-  });
-
-  it('should throw 404 if the application is not found', async () => {
-    await expectRejects(
-      ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
-        connectorId: ssoConnectors.get('saml')!.id,
-        defaultApplicationId: 'not-found',
-        redirectUri: 'https://example.com',
-      }),
-      {
-        code: 'entity.not_exists_with_id',
-        status: 404,
-      }
-    );
-  });
-
-  it.each(['spa', 'thirdParty'])(
-    'should throw 400 if the application is not a first-party traditional web application',
-    async (applicationKey) => {
-      const defaultApplicationId = applications.get(applicationKey)!.id;
       await expectRejects(
         ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
-          connectorId: ssoConnectors.get('saml')!.id,
+          connectorId: 'not-found',
           defaultApplicationId,
           redirectUri: 'https://example.com',
         }),
         {
-          code: 'connector.saml_idp_initiated_auth_invalid_application_type',
+          code: 'entity.not_exists_with_id',
+          status: 404,
+        }
+      );
+    });
+
+    it('should throw 400 if the connector is not SAML', async () => {
+      const defaultApplicationId = applications.get('traditional')!.id;
+
+      await expectRejects(
+        ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
+          connectorId: ssoConnectors.get('oidc')!.id,
+          defaultApplicationId,
+          redirectUri: 'https://example.com',
+        }),
+        {
+          code: 'connector.saml_only_idp_initiated_auth',
           status: 400,
         }
       );
-    }
-  );
-
-  it('should create a new IdP-initiated authentication configuration for a SAML SSO connector', async () => {
-    const defaultApplicationId = applications.get('traditional')!.id;
-    const redirectUri = 'https://example.com';
-    const authParameters = {
-      resources: ['resource1', 'resource2'],
-      scopes: ['profile', 'email'],
-    };
-    const connectorId = ssoConnectors.get('saml')!.id;
-
-    const config = await ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
-      connectorId,
-      defaultApplicationId,
-      redirectUri,
-      authParameters,
     });
 
-    expect(config).toMatchObject({
-      defaultApplicationId,
-      redirectUri,
-      authParameters,
+    it('should throw 404 if the application is not found', async () => {
+      await expectRejects(
+        ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
+          connectorId: ssoConnectors.get('saml')!.id,
+          defaultApplicationId: 'not-found',
+          redirectUri: 'https://example.com',
+        }),
+        {
+          code: 'entity.not_exists_with_id',
+          status: 404,
+        }
+      );
     });
 
-    const fetchedConfig = await ssoConnectorsApi.getSsoConnectorIdpInitiatedAuthConfig(connectorId);
+    it.each(['spa', 'thirdParty'])(
+      'should throw 400 if the application is not a first-party traditional web application',
+      async (applicationKey) => {
+        const defaultApplicationId = applications.get(applicationKey)!.id;
+        await expectRejects(
+          ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
+            connectorId: ssoConnectors.get('saml')!.id,
+            defaultApplicationId,
+            redirectUri: 'https://example.com',
+          }),
+          {
+            code: 'connector.saml_idp_initiated_auth_invalid_application_type',
+            status: 400,
+          }
+        );
+      }
+    );
 
-    expect(fetchedConfig).toMatchObject(config);
+    it('should create a new IdP-initiated authentication configuration for a SAML SSO connector', async () => {
+      const defaultApplicationId = applications.get('traditional')!.id;
+      const redirectUri = 'https://example.com';
+      const authParameters = {
+        resources: ['resource1', 'resource2'],
+        scopes: ['profile', 'email'],
+      };
+      const connectorId = ssoConnectors.get('saml')!.id;
+
+      const config = await ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
+        connectorId,
+        defaultApplicationId,
+        redirectUri,
+        authParameters,
+      });
+
+      expect(config).toMatchObject({
+        defaultApplicationId,
+        redirectUri,
+        authParameters,
+      });
+
+      const fetchedConfig = await ssoConnectorsApi.getSsoConnectorIdpInitiatedAuthConfig(
+        connectorId
+      );
+
+      expect(fetchedConfig).toMatchObject(config);
+    });
+
+    it('should cascade delete the IdP-initiated authentication configuration when the application is deleted', async () => {
+      const application = await createApplication(
+        `web-app-${randomString()}`,
+        ApplicationType.Traditional
+      );
+      const connectorId = ssoConnectors.get('saml')!.id;
+
+      const config = await ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
+        connectorId,
+        defaultApplicationId: application.id,
+        redirectUri: 'https://example.com',
+      });
+
+      expect(config).not.toBeNull();
+
+      await deleteApplication(application.id);
+
+      await expectRejects(ssoConnectorsApi.getSsoConnectorIdpInitiatedAuthConfig(connectorId), {
+        code: 'entity.not_found',
+        status: 404,
+      });
+    });
   });
 
-  it('should cascade delete the IdP-initiated authentication configuration when the application is deleted', async () => {
-    const application = await createApplication(
-      `web-app-${randomString()}`,
-      ApplicationType.Traditional
-    );
-    const connectorId = ssoConnectors.get('saml')!.id;
-
-    const config = await ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
-      connectorId,
-      defaultApplicationId: application.id,
-      redirectUri: 'https://example.com',
+  describe('Update IdP-initiated authentication configuration', () => {
+    it('should throw 404 if the application is not found', async () => {
+      await expectRejects(
+        ssoConnectorsApi.updateSsoConnectorIdpInitiatedAuthConfig(ssoConnectors.get('saml')!.id, {
+          defaultApplicationId: 'not-found',
+          redirectUri: 'https://example.com',
+        }),
+        {
+          code: 'entity.not_exists_with_id',
+          status: 404,
+        }
+      );
     });
 
-    expect(config).not.toBeNull();
+    it.each(['spa', 'thirdParty'])(
+      'should throw 400 if the application is not a first-party traditional web application',
+      async (applicationKey) => {
+        await expectRejects(
+          ssoConnectorsApi.updateSsoConnectorIdpInitiatedAuthConfig(ssoConnectors.get('saml')!.id, {
+            defaultApplicationId: applications.get(applicationKey)!.id,
+            redirectUri: 'https://example.com',
+          }),
+          {
+            code: 'connector.saml_idp_initiated_auth_invalid_application_type',
+            status: 400,
+          }
+        );
+      }
+    );
 
-    await deleteApplication(application.id);
+    it('should update the IdP-initiated authentication configuration for a SAML SSO connector', async () => {
+      const connectorId = ssoConnectors.get('saml')!.id;
+      const defaultApplicationId = applications.get('traditional')!.id;
 
-    await expectRejects(ssoConnectorsApi.getSsoConnectorIdpInitiatedAuthConfig(connectorId), {
-      code: 'entity.not_found',
-      status: 404,
+      const config = await ssoConnectorsApi.setSsoConnectorIdpInitiatedAuthConfig({
+        connectorId,
+        defaultApplicationId,
+        redirectUri: 'https://example.com',
+      });
+
+      const updatedConfig = await ssoConnectorsApi.updateSsoConnectorIdpInitiatedAuthConfig(
+        connectorId,
+        {
+          redirectUri: 'https://updated.com',
+          authParameters: {
+            resources: ['resource1', 'resource2'],
+            scopes: ['profile', 'email'],
+          },
+        }
+      );
+
+      expect(updatedConfig).toMatchObject({
+        connectorId,
+        defaultApplicationId,
+        redirectUri: 'https://updated.com',
+        authParameters: {
+          resources: ['resource1', 'resource2'],
+          scopes: ['profile', 'email'],
+        },
+      });
+    });
+
+    it('should throw 404 if the IdP-initiated authentication configuration is not found', async () => {
+      const connectorId = ssoConnectors.get('saml')!.id;
+
+      await ssoConnectorsApi.deleteSsoConnectorIdpInitiatedAuthConfig(connectorId);
+
+      await expectRejects(
+        ssoConnectorsApi.updateSsoConnectorIdpInitiatedAuthConfig(connectorId, {
+          defaultApplicationId: applications.get('traditional')!.id,
+          redirectUri: 'https://example.com',
+        }),
+        {
+          code: 'entity.not_exists',
+          status: 404,
+        }
+      );
     });
   });
 });