diff --git a/src/cookieSyncManager.interfaces.ts b/src/cookieSyncManager.interfaces.ts
new file mode 100644
index 000000000..1f471a5b9
--- /dev/null
+++ b/src/cookieSyncManager.interfaces.ts
@@ -0,0 +1,23 @@
+import { MPID } from "@mparticle/web-sdk";
+import { Dictionary } from "./utils";
+import { IConsentRules } from "./consent";
+
+export interface ICookieSyncManager {
+    attemptCookieSync: (previousMPID: MPID, mpid: MPID, mpidIsNotInCookies: boolean) => void;
+    performCookieSync: (
+        url: string,
+        moduleId: number,
+        mpid: MPID,
+        cookieSyncDates: Dictionary<number>,
+        filteringConsentRuleValues: IConsentRules,
+        mpidIsNotInCookies: boolean,
+        requiresConsent: boolean
+    ) => void;
+    replaceAmpWithAmpersand: (string: string) => string;
+    replaceMPID: (string: string, mpid: MPID) => string;
+
+    /**
+     * @deprecated replaceAmp has been deprecated, use replaceAmpersandWithAmp instead
+     */
+    replaceAmp: (string: string) => string;
+}
\ No newline at end of file
diff --git a/src/cookieSyncManager.js b/src/cookieSyncManager.js
index 0eadf9201..b5026149a 100644
--- a/src/cookieSyncManager.js
+++ b/src/cookieSyncManager.js
@@ -146,8 +146,15 @@ export default function cookieSyncManager(mpInstance) {
     };
 
     // Private
-    // TODO: Rename function to replaceAmpWithAmpersand
+    /**
+     * @deprecated replaceAmp has been deprecated, use replaceAmpersandWithAmp instead
+     */
     this.replaceAmp = function(string) {
+        return this.replaceAmpWithAmpersand(string);
+    };
+
+    // Private
+    this.replaceAmpWithAmpersand = function(string) {
         return string.replace(/&amp;/g, '&');
     };
 
diff --git a/src/sdkRuntimeModels.ts b/src/sdkRuntimeModels.ts
index 8bf74bfbd..9f6c5a9c2 100644
--- a/src/sdkRuntimeModels.ts
+++ b/src/sdkRuntimeModels.ts
@@ -31,6 +31,7 @@ import {
 } from './identity-user-interfaces';
 import { IIdentityType } from './types.interfaces';
 import IntegrationCapture from './integrationCapture';
+import { ICookieSyncManager } from './cookieSyncManager.interfaces';
 
 // TODO: Resolve this with version in @mparticle/web-sdk
 export type SDKEventCustomFlags = Dictionary<any>;
@@ -158,6 +159,7 @@ export interface MParticleWebSDK {
     Logger: SDKLoggerApi;
     MPSideloadedKit: IMPSideloadedKit;
     _APIClient: any; // TODO: Set up API Client
+    _CookieSyncManager: ICookieSyncManager;
     _Store: IStore;
     _Forwarders: any;
     _Helpers: SDKHelpersApi;