diff --git a/src/helpers/heritage-integration/cookie-helper.spec.js b/src/helpers/heritage-integration/cookie-helper.spec.js
index 8abd265e5..349b2206a 100644
--- a/src/helpers/heritage-integration/cookie-helper.spec.js
+++ b/src/helpers/heritage-integration/cookie-helper.spec.js
@@ -5,6 +5,8 @@ import {
     getSessionIdValue,
     setCookieProperties,
     regenerateDeviceId,
+    getUserIdValue,
+    regenerateUserId,
 } from "@/helpers/heritage-integration/cookie-helper.js";
 import { cookieNames } from "@/constants/cookie-names";
 import { removeAllTestCookies, setupCookies, setupCrypto } from "@/helpers/unit-test-helper";
@@ -139,9 +141,13 @@ describe("cookies", () => {
 
             test("Should return id even if cookie contains other data", () => {
                 //Arrange
-                setCookieProperties({
-                    [cookieNames.DXDEV]: "did=f4a1a9e8-b3f3-4936-8c30-2f06a98644af&tz=-300&tzd=1",
-                }, {});
+                setCookieProperties(
+                    {
+                        [cookieNames.DXDEV]:
+                            "did=f4a1a9e8-b3f3-4936-8c30-2f06a98644af&tz=-300&tzd=1",
+                    },
+                    {}
+                );
 
                 //Act
                 const result = getDeviceIdValue();
@@ -178,6 +184,56 @@ describe("cookies", () => {
         });
     });
 
+    describe("User Id", () => {
+        describe("getUserIdValue", () => {
+            test("Should return GUID", () => {
+                // Arrange
+                setupCookies({});
+
+                // Act
+                const result = getUserIdValue();
+
+                //Assert
+                expect(result).toBe("11aec5e8-92ba-4dc9-a8b6-179a916d8d7a");
+            });
+
+            test("Should return 0s if unset", () => {
+                //Arrange
+                //Act
+                const result = getUserIdValue();
+
+                //Assert
+                expect(result).toBe("00000000-0000-0000-0000-000000000000");
+            });
+        });
+
+        describe("regenerateUserId", () => {
+            test("Generates a new id if unset", () => {
+                // Arrange
+                // Act
+                regenerateUserId();
+                const result = getUserIdValue();
+
+                // Assert
+                expect(result).not.toBe("00000000-0000-0000-0000-000000000000");
+                expect(global.crypto.randomUUID).toBeCalled();
+            });
+
+            test("Does not create a new id if already set", () => {
+                // Arrange
+                setupCookies({});
+
+                // Act
+                regenerateUserId();
+                const result = getUserIdValue();
+
+                // Assert
+                expect(result).toBe("11aec5e8-92ba-4dc9-a8b6-179a916d8d7a");
+                expect(global.crypto.randomUUID).not.toBeCalled();
+            });
+        });
+    });
+
     test("getSessionKeyValue, should return session key int", () => {
         // Arrange
         setupCookies({});
diff --git a/src/helpers/unit-test-helper.js b/src/helpers/unit-test-helper.js
index 457dd47fb..2cd580df0 100644
--- a/src/helpers/unit-test-helper.js
+++ b/src/helpers/unit-test-helper.js
@@ -141,7 +141,7 @@ export function setupCookies({ funnelCookieValue = "", includeHeritageCookie = t
 
 export function setupCrypto(mockValue) {
     global.crypto = {
-        randomUUID: jest.fn()
+        randomUUID: jest.fn(),
     };
 
     global.crypto.randomUUID.mockImplementation(() => mockValue);