diff --git a/.changeset/wild-gifts-move.md b/.changeset/wild-gifts-move.md
new file mode 100644
index 000000000..777bab73e
--- /dev/null
+++ b/.changeset/wild-gifts-move.md
@@ -0,0 +1,5 @@
+---
+'@forgerock/javascript-sdk': patch
+---
+
+Add support for KBA `allowUserDefinedQuestions` flag
diff --git a/e2e/autoscript-apps/src/register-basic/autoscript.ts b/e2e/autoscript-apps/src/register-basic/autoscript.ts
index 6254ddc00..1db5195d1 100644
--- a/e2e/autoscript-apps/src/register-basic/autoscript.ts
+++ b/e2e/autoscript-apps/src/register-basic/autoscript.ts
@@ -89,11 +89,19 @@ function autoscript() {
           console.log(`Predefined Question1: ${pdq1}`);
           console.log(`Predefined Question 2: ${pdq2}`);
 
-          kbCb1.setQuestion('What is your favorite color?');
+          const isAllowedUserDefinedQuestions1 = kbCb1.isAllowedUserDefinedQuestions();
+          const isAllowedUserDefinedQuestions2 = kbCb2.isAllowedUserDefinedQuestions();
+          console.log(`kbCb1 is allowed user defined questions: ${isAllowedUserDefinedQuestions1}`);
+          console.log(`kbCb2 is allowed user defined questions: ${isAllowedUserDefinedQuestions2}`);
+
+          kbCb1.setQuestion(pdq1);
           kbCb1.setAnswer('Red');
 
-          kbCb2.setQuestion('Who was your first employer?');
-          kbCb2.setAnswer('AAA Engineering');
+          kbCb2.setQuestion('Who was your first pet?');
+          kbCb2.setAnswer('Fluffy');
+
+          const customQuestion = kbCb2.getInputValue();
+          console.log(`Custom Question from kbCb2: ${customQuestion}`);
 
           console.log('Handle TermsAndConditionsCallback');
           const tcCb = step.getCallbackOfType('TermsAndConditionsCallback');
diff --git a/e2e/autoscript-suites/src/suites/register-basic.lc.test.ts b/e2e/autoscript-suites/src/suites/register-basic.lc.test.ts
index 1725d55d1..20292a0e0 100644
--- a/e2e/autoscript-suites/src/suites/register-basic.lc.test.ts
+++ b/e2e/autoscript-suites/src/suites/register-basic.lc.test.ts
@@ -16,7 +16,7 @@ test.describe('Test basic registration flow', () => {
   const un = v4();
   const email = `${un}@me.com`;
 
-  test(`should register user successfully and then log ou`, async ({ page, browserName }) => {
+  test(`should register user successfully and then log out`, async ({ page, browserName }) => {
     const { messageArray } = await setupAndGo(page, browserName, 'register-basic/', {
       un,
       email,
@@ -33,6 +33,8 @@ test.describe('Test basic registration flow', () => {
     // expect(messageArray.includes('Prompt 6: Age')).toBe(true);
     expect(messageArray.includes('Prompt 7: Select a security question')).toBe(true);
     expect(messageArray.includes(`Predefined Question1: What's your favorite color?`)).toBe(true);
+    expect(messageArray.includes(`kbCb2 is allowed user defined questions: true`)).toBe(true);
+    expect(messageArray.includes(`Custom Question from kbCb2: Who was your first pet?`)).toBe(true);
     expect(messageArray.includes('Terms version: 0.0')).toBe(true);
     expect(
       messageArray.includes(
diff --git a/e2e/mock-api/src/app/response.registration.js b/e2e/mock-api/src/app/response.registration.js
index 527147371..a986ffad7 100644
--- a/e2e/mock-api/src/app/response.registration.js
+++ b/e2e/mock-api/src/app/response.registration.js
@@ -181,6 +181,10 @@ export default {
           name: 'predefinedQuestions',
           value: [`What's your favorite color?`, 'Who was your first employer?'],
         },
+        {
+          name: 'allowUserDefinedQuestions',
+          value: true,
+        },
       ],
       input: [
         { name: 'IDToken8question', value: '' },
@@ -196,6 +200,10 @@ export default {
           name: 'predefinedQuestions',
           value: [`What's your favorite color?`, 'Who was your first employer?'],
         },
+        {
+          name: 'allowUserDefinedQuestions',
+          value: true,
+        },
       ],
       input: [
         { name: 'IDToken9question', value: '' },
diff --git a/packages/javascript-sdk/src/fr-auth/callbacks/kba-create-callback.ts b/packages/javascript-sdk/src/fr-auth/callbacks/kba-create-callback.ts
index f10c9edc5..254434934 100644
--- a/packages/javascript-sdk/src/fr-auth/callbacks/kba-create-callback.ts
+++ b/packages/javascript-sdk/src/fr-auth/callbacks/kba-create-callback.ts
@@ -36,6 +36,13 @@ class KbaCreateCallback extends FRCallback {
     return this.getOutputByName<string[]>('predefinedQuestions', []);
   }
 
+  /**
+   * Gets whether the user can define questions.
+   */
+  public isAllowedUserDefinedQuestions(): boolean {
+    return this.getOutputByName<boolean>('allowUserDefinedQuestions', false);
+  }
+
   /**
    * Sets the callback's security question.
    */