diff --git a/packages/console/src/components/CodeEditor/index.module.scss b/packages/console/src/components/CodeEditor/index.module.scss
index d4579a524..181cfd2c5 100644
--- a/packages/console/src/components/CodeEditor/index.module.scss
+++ b/packages/console/src/components/CodeEditor/index.module.scss
@@ -57,3 +57,9 @@
     }
   }
 }
+
+.errorMessage {
+  font: var(--font-body-medium);
+  color: var(--color-error);
+  margin-top: _.unit(1);
+}
diff --git a/packages/console/src/components/CodeEditor/index.tsx b/packages/console/src/components/CodeEditor/index.tsx
index 8f40238ca..86e27ef76 100644
--- a/packages/console/src/components/CodeEditor/index.tsx
+++ b/packages/console/src/components/CodeEditor/index.tsx
@@ -14,6 +14,8 @@ type Props = {
   value?: string;
   onChange?: (value: string) => void;
   tabSize?: number;
+  hasError?: boolean;
+  errorMessage?: string;
 };
 
 const CodeEditor = ({
@@ -23,6 +25,8 @@ const CodeEditor = ({
   value = '',
   onChange,
   tabSize = 2,
+  hasError,
+  errorMessage,
 }: Props) => {
   const textareaRef = useRef<HTMLTextAreaElement>(null);
 
@@ -49,49 +53,52 @@ const CodeEditor = ({
   };
 
   return (
-    <div className={classNames(styles.container, className)}>
-      <CopyToClipboard value={value} variant="icon" className={styles.copy} />
-      <div className={styles.editor}>
-        {/* SyntaxHighlighter is a readonly component, so a transparent <textarea> layer is needed
-        in order to support user interactions, such as code editing, copy-pasting, etc. */}
-        <textarea
-          ref={textareaRef}
-          autoCapitalize="off"
-          autoComplete="off"
-          autoCorrect="off"
-          data-gramm="false"
-          readOnly={isReadonly}
-          spellCheck="false"
-          value={value}
-          onChange={handleChange}
-          onKeyDown={handleKeydown}
-        />
-        {/* SyntaxHighlighter will generate a <pre> tag and a inner <code> tag. Both have
-        inline-styles by default. Therefore, We can only use inline styles to customize them.
-        Some styles have to be applied multiple times to each of them for the sake of consistency. */}
-        <SyntaxHighlighter
-          wrapLongLines
-          codeTagProps={{
-            style: {
-              fontFamily: "'Roboto Mono', monospace", // Override default font-family of <code>
-            },
-          }}
-          customStyle={{
-            background: 'transparent',
-            fontSize: '14px',
-            margin: '0',
-            padding: '0',
-            borderRadius: '0',
-            wordBreak: 'break-all',
-            fontFamily: "'Roboto Mono', monospace", // Override default font-family of <pre>
-          }}
-          language={language}
-          style={theme}
-        >
-          {value}
-        </SyntaxHighlighter>
+    <>
+      <div className={classNames(styles.container, className)}>
+        <CopyToClipboard value={value} variant="icon" className={styles.copy} />
+        <div className={styles.editor}>
+          {/* SyntaxHighlighter is a readonly component, so a transparent <textarea> layer is needed
+      in order to support user interactions, such as code editing, copy-pasting, etc. */}
+          <textarea
+            ref={textareaRef}
+            autoCapitalize="off"
+            autoComplete="off"
+            autoCorrect="off"
+            data-gramm="false"
+            readOnly={isReadonly}
+            spellCheck="false"
+            value={value}
+            onChange={handleChange}
+            onKeyDown={handleKeydown}
+          />
+          {/* SyntaxHighlighter will generate a <pre> tag and a inner <code> tag. Both have
+      inline-styles by default. Therefore, We can only use inline styles to customize them.
+      Some styles have to be applied multiple times to each of them for the sake of consistency. */}
+          <SyntaxHighlighter
+            wrapLongLines
+            codeTagProps={{
+              style: {
+                fontFamily: "'Roboto Mono', monospace", // Override default font-family of <code>
+              },
+            }}
+            customStyle={{
+              background: 'transparent',
+              fontSize: '14px',
+              margin: '0',
+              padding: '0',
+              borderRadius: '0',
+              wordBreak: 'break-all',
+              fontFamily: "'Roboto Mono', monospace", // Override default font-family of <pre>
+            }}
+            language={language}
+            style={theme}
+          >
+            {value}
+          </SyntaxHighlighter>
+        </div>
       </div>
-    </div>
+      {hasError && errorMessage && <div className={styles.errorMessage}>{errorMessage}</div>}
+    </>
   );
 };
 
diff --git a/packages/console/src/pages/Connectors/components/ConnectorForm/index.tsx b/packages/console/src/pages/Connectors/components/ConnectorForm/index.tsx
index 18911e525..3134686ce 100644
--- a/packages/console/src/pages/Connectors/components/ConnectorForm/index.tsx
+++ b/packages/console/src/pages/Connectors/components/ConnectorForm/index.tsx
@@ -12,7 +12,7 @@ import FormField from '@/components/FormField';
 import Select from '@/components/Select';
 import TextInput from '@/components/TextInput';
 import TextLink from '@/components/TextLink';
-import { uriValidator } from '@/utilities/validator';
+import { uriValidator, jsonValidator } from '@/utilities/validator';
 
 import type { ConnectorFormType } from '../../types';
 import { SyncProfileMode } from '../../types';
@@ -127,9 +127,17 @@ const ConnectorForm = ({ connector, isAllowEditTarget }: Props) => {
           name="config"
           control={control}
           defaultValue={configTemplate}
-          rules={{ required: true }}
+          rules={{
+            validate: (value) => jsonValidator(value) || t('errors.invalid_json_format'),
+          }}
           render={({ field: { onChange, value } }) => (
-            <CodeEditor language="json" value={value} onChange={onChange} />
+            <CodeEditor
+              hasError={Boolean(errors.config)}
+              errorMessage={errors.config?.message}
+              language="json"
+              value={value}
+              onChange={onChange}
+            />
           )}
         />
       </FormField>
diff --git a/packages/console/src/utilities/validator.ts b/packages/console/src/utilities/validator.ts
index 15696e367..f3b98dc76 100644
--- a/packages/console/src/utilities/validator.ts
+++ b/packages/console/src/utilities/validator.ts
@@ -16,3 +16,13 @@ export const uriOriginValidator = (value: string) => {
     return false;
   }
 };
+
+export const jsonValidator = (value: string) => {
+  try {
+    JSON.parse(value);
+  } catch {
+    return false;
+  }
+
+  return true;
+};