diff --git a/packages/auth/__tests__/providers/cognito/signUp.test.ts b/packages/auth/__tests__/providers/cognito/signUp.test.ts
index 6777fc2894b..87e0dda27c6 100644
--- a/packages/auth/__tests__/providers/cognito/signUp.test.ts
+++ b/packages/auth/__tests__/providers/cognito/signUp.test.ts
@@ -172,6 +172,38 @@ describe('signUp', () => {
 				userId,
 			});
 		});
+
+		it('should send UserContextData', async () => {
+			(window as any).AmazonCognitoAdvancedSecurityData = {
+				getData() {
+					return 'abcd';
+				},
+			};
+			await signUp({
+				username: user1.username,
+				password: user1.password,
+				options: {
+					userAttributes: { email: user1.email },
+				},
+			});
+			expect(mockSignUp).toHaveBeenCalledWith(
+				{
+					region: 'us-west-2',
+					userAgentValue: expect.any(String),
+				},
+				{
+					ClientMetadata: undefined,
+					Password: user1.password,
+					UserAttributes: [{ Name: 'email', Value: user1.email }],
+					Username: user1.username,
+					ValidationData: undefined,
+					ClientId: '111111-aaaaa-42d8-891d-ee81a1549398',
+					UserContextData: { EncodedData: 'abcd' },
+				},
+			);
+			expect(mockSignUp).toHaveBeenCalledTimes(1);
+			(window as any).AmazonCognitoAdvancedSecurityData = undefined;
+		});
 	});
 
 	describe('Error Path Cases:', () => {
diff --git a/packages/auth/src/providers/cognito/apis/signUp.ts b/packages/auth/src/providers/cognito/apis/signUp.ts
index 69aca1b528a..ef9aef32fa2 100644
--- a/packages/auth/src/providers/cognito/apis/signUp.ts
+++ b/packages/auth/src/providers/cognito/apis/signUp.ts
@@ -25,6 +25,7 @@ import {
 	setAutoSignInStarted,
 	setUsernameUsedForAutoSignIn,
 } from '../utils/signUpHelpers';
+import { getUserContextData } from '../utils/userContextData';
 import { getAuthUserAgentValue } from '../../../utils';
 
 import { setAutoSignIn } from './autoSignIn';
@@ -62,7 +63,6 @@ export async function signUp(input: SignUpInput): Promise<SignUpOutput> {
 		username,
 		options: signInServiceOptions,
 	};
-
 	// if the authFlowType is 'CUSTOM_WITHOUT_SRP' then we don't include the password
 	if (signInServiceOptions?.authFlowType !== 'CUSTOM_WITHOUT_SRP') {
 		signInInput.password = password;
@@ -71,9 +71,12 @@ export async function signUp(input: SignUpInput): Promise<SignUpOutput> {
 		setUsernameUsedForAutoSignIn(username);
 		setAutoSignInStarted(true);
 	}
+
+	const { userPoolId, userPoolClientId } = authConfig;
+
 	const clientOutput = await signUpClient(
 		{
-			region: getRegion(authConfig.userPoolId),
+			region: getRegion(userPoolId),
 			userAgentValue: getAuthUserAgentValue(AuthAction.SignUp),
 		},
 		{
@@ -83,7 +86,12 @@ export async function signUp(input: SignUpInput): Promise<SignUpOutput> {
 				options?.userAttributes && toAttributeType(options?.userAttributes),
 			ClientMetadata: clientMetadata,
 			ValidationData: validationData && toAttributeType(validationData),
-			ClientId: authConfig.userPoolClientId,
+			ClientId: userPoolClientId,
+			UserContextData: getUserContextData({
+				username,
+				userPoolId,
+				userPoolClientId,
+			}),
 		},
 	);
 	const { UserSub, CodeDeliveryDetails } = clientOutput;