diff --git a/ecommerce/templates/checkout_interstitial.html b/ecommerce/templates/checkout_interstitial.html
index 6706435a9..af309783c 100644
--- a/ecommerce/templates/checkout_interstitial.html
+++ b/ecommerce/templates/checkout_interstitial.html
@@ -15,12 +15,6 @@ <h1 class="mt-4">Redirecting to the payment processor...</h1>
                             <input type="hidden" readonly="readonly" name="{{ key }}" value="{{ value }}" />
                             {% endfor %}
                         </form>
-                    {% if ga_purchase_flag %}
-                        {{ ga_purchase_payload | json_script:"ga-purchase-payload" }}
-                        <script type="text/javascript">
-                            gtag("event", "purchase", JSON.parse(document.getElementById('ga-purchase-payload').textContent));
-                        </script>
-                    {% endif %}
                         <script type="text/javascript">
                             document.getElementById('checkout_form').submit();
                         </script>
diff --git a/ecommerce/views/v0/__init__.py b/ecommerce/views/v0/__init__.py
index a263cfcef..a0b528778 100644
--- a/ecommerce/views/v0/__init__.py
+++ b/ecommerce/views/v0/__init__.py
@@ -573,6 +573,7 @@ def post_checkout_redirect(self, order_state, order, request):
                 {
                     "type": USER_MSG_TYPE_PAYMENT_ACCEPTED,
                     "run": order.lines.first().purchased_object.course.title,
+                    "order": order.reference_number,
                 },
             )
         else:
diff --git a/frontend/public/package.json b/frontend/public/package.json
index b32e36950..18a60a6d7 100644
--- a/frontend/public/package.json
+++ b/frontend/public/package.json
@@ -86,7 +86,7 @@
     "react-device-detect": "1.17.0",
     "react-document-title": "2.0.3",
     "react-dom": "16.14.0",
-    "react-ga": "2.7.0",
+    "react-ga4": "^2.1.0",
     "react-google-recaptcha": "1.1.0",
     "react-hot-loader": "4.13.1",
     "react-markdown": "5.0.3",
diff --git a/frontend/public/src/components/TopBar.js b/frontend/public/src/components/TopBar.js
index 789e7a2db..656650b7c 100644
--- a/frontend/public/src/components/TopBar.js
+++ b/frontend/public/src/components/TopBar.js
@@ -31,7 +31,10 @@ const TopBar = ({ currentUser }: Props) => {
   return (
     <header className="site-header new-design d-flex d-flex flex-column">
       {showComponent ? (
-        <NotificationContainer id="notifications-container" />
+        <NotificationContainer
+          id="notifications-container"
+          currentUser={currentUser}
+        />
       ) : null}
       <nav
         className={`order-1 sub-nav navbar navbar-expand-md top-navbar ${
diff --git a/frontend/public/src/constants.js b/frontend/public/src/constants.js
index 6f2c80aa1..a084f1ed2 100644
--- a/frontend/public/src/constants.js
+++ b/frontend/public/src/constants.js
@@ -173,3 +173,7 @@ export const NODETYPE_COURSE = "course"
 
 export const NODEOPER_ALL = "all_of"
 export const NODEOPER_MIN = "min_number_of"
+
+export const GOOGLE_ANALYTICS_EVENT_TYPE = {
+  GA_PURCHASE: "purchase"
+}
diff --git a/frontend/public/src/containers/App.js b/frontend/public/src/containers/App.js
index 1b5496df6..6af9442a8 100644
--- a/frontend/public/src/containers/App.js
+++ b/frontend/public/src/containers/App.js
@@ -10,6 +10,7 @@ import urljoin from "url-join"
 import users, { currentUserSelector } from "../lib/queries/users"
 import { routes } from "../lib/urls"
 import {
+  determineUserActionForGoogleAnalytics,
   getStoredUserMessage,
   removeStoredUserMessage
 } from "../lib/notificationsApi"
@@ -32,6 +33,9 @@ import CatalogPage from "./pages/CatalogPage"
 
 import type { Match, Location } from "react-router"
 import type { CurrentUser } from "../flow/authTypes"
+import { checkFeatureFlag } from "../lib/util"
+import { GOOGLE_ANALYTICS_EVENT_TYPE } from "../constants"
+import { sendGAEcommerceEvent } from "../util/gaUtils"
 
 type Props = {
   match: Match,
@@ -43,8 +47,25 @@ type Props = {
 export class App extends React.Component<Props, void> {
   componentDidMount() {
     const { addUserNotification } = this.props
+    const { currentUser } = this.props
 
-    const userMsg = getStoredUserMessage()
+    const gaFeatureFlag = checkFeatureFlag(
+      "mitxonline-4099-dedp-google-analytics",
+      currentUser
+    )
+    if (gaFeatureFlag) {
+      const gaEcommerceEventObject =
+        determineUserActionForGoogleAnalytics(currentUser)
+      if (
+        gaEcommerceEventObject.action ===
+        GOOGLE_ANALYTICS_EVENT_TYPE["GA_PURCHASE"]
+      ) {
+        const event = gaEcommerceEventObject.order
+        sendGAEcommerceEvent(gaEcommerceEventObject.action, event)
+      }
+    }
+
+    const userMsg = getStoredUserMessage(currentUser)
     if (userMsg) {
       addUserNotification({
         "loaded-user-msg": {
diff --git a/frontend/public/src/lib/notificationsApi.js b/frontend/public/src/lib/notificationsApi.js
index efd369a8f..013a70f17 100644
--- a/frontend/public/src/lib/notificationsApi.js
+++ b/frontend/public/src/lib/notificationsApi.js
@@ -4,6 +4,7 @@ import { isEmptyText } from "./util"
 import {
   ALERT_TYPE_DANGER,
   ALERT_TYPE_SUCCESS,
+  GOOGLE_ANALYTICS_EVENT_TYPE,
   USER_MSG_COOKIE_NAME,
   USER_MSG_TYPE_COMPLETED_AUTH,
   USER_MSG_TYPE_ENROLL_BLOCKED,
@@ -25,15 +26,35 @@ type UserMessage = {
   text: string
 }
 
-export function getStoredUserMessage(): UserMessage | null {
+function ingestUserMessage(): userJson | null {
   const userMsgValue = getCookie(USER_MSG_COOKIE_NAME)
   if (!userMsgValue || isEmptyText(userMsgValue)) {
     return null
   }
-  const userMsgObject = JSON.parse(decodeURIComponent(userMsgValue))
+  return JSON.parse(decodeURIComponent(userMsgValue))
+}
+
+export function getStoredUserMessage(): UserMessage | null {
+  const userMsgObject = ingestUserMessage()
+  if (!userMsgObject) {
+    return null
+  }
   return parseStoredUserMessage(userMsgObject)
 }
 
+export function determineUserActionForGoogleAnalytics() {
+  const userMsg = ingestUserMessage()
+  if (!userMsg) return null
+  const msgType = userMsg.type || null
+  if (!msgType) return null
+  if (msgType === USER_MSG_TYPE_PAYMENT_ACCEPTED) {
+    return {
+      action: GOOGLE_ANALYTICS_EVENT_TYPE["GA_PURCHASE"],
+      order:  userMsg.order
+    }
+  }
+}
+
 export function parseStoredUserMessage(
   userMsgJson: Object
 ): UserMessage | null {
diff --git a/frontend/public/src/util/gaUtils.js b/frontend/public/src/util/gaUtils.js
new file mode 100644
index 000000000..3a42c608d
--- /dev/null
+++ b/frontend/public/src/util/gaUtils.js
@@ -0,0 +1,17 @@
+import ga4 from "react-ga4"
+
+export function sendGAEvent({ category, action, label, value }) {
+  const event = {
+    category: category,
+    action:   action,
+    label:    label
+  }
+  if (value !== undefined) {
+    event.value = value
+  }
+  ga4.event(event)
+}
+
+export function sendGAEcommerceEvent({ eventType, eventData }) {
+  ga4.gtag("event", eventType, eventData)
+}
diff --git a/frontend/public/src/util/withTracker.js b/frontend/public/src/util/withTracker.js
index 8c396ad77..ba97dfab3 100644
--- a/frontend/public/src/util/withTracker.js
+++ b/frontend/public/src/util/withTracker.js
@@ -3,19 +3,20 @@
 
 // From https://github.com/ReactTraining/react-router/issues/4278#issuecomment-299692502
 import React from "react"
-import ga from "react-ga"
+import ga4 from "react-ga4"
 
 const withTracker = (WrappedComponent: Class<React.Component<*, *>>) => {
   const debug = SETTINGS.reactGaDebug === "true"
 
   if (SETTINGS.gaTrackingID) {
-    ga.initialize(SETTINGS.gaTrackingID, { debug: debug })
+    ga4.initialize(SETTINGS.gaTrackingID, { debug: debug })
   }
 
   const HOC = (props: Object) => {
     const page = props.location.pathname
+    const title = props.location.title
     if (SETTINGS.gaTrackingID) {
-      ga.pageview(page)
+      ga4.send({ hitType: "pageview", page: page, title: title })
     }
     return <WrappedComponent {...props} />
   }
diff --git a/yarn.lock b/yarn.lock
index fa3f17543..986729338 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -15150,7 +15150,7 @@ __metadata:
     react-device-detect: 1.17.0
     react-document-title: 2.0.3
     react-dom: 16.14.0
-    react-ga: 2.7.0
+    react-ga4: ^2.1.0
     react-google-recaptcha: 1.1.0
     react-hot-loader: 4.13.1
     react-markdown: 5.0.3
@@ -18554,13 +18554,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react-ga@npm:2.7.0":
-  version: 2.7.0
-  resolution: "react-ga@npm:2.7.0"
-  peerDependencies:
-    prop-types: ^15.6.0
-    react: ^15.6.2 || ^16.0
-  checksum: 15d8571c156edfaa204ff0041db7a901b0eeca3e3b21774e918269b0fe48204bb5b6a3df882caea5e0077aa3a32be39a48e7082e556563338f2a78b402a59463
+"react-ga4@npm:^2.1.0":
+  version: 2.1.0
+  resolution: "react-ga4@npm:2.1.0"
+  checksum: f7fb41141418d4ad14756f1126a1e9958db37d4d84ae6cd798043dc03a390b6dba74d69311af0349f0b9580a43bda8930138194ccc29c4100efe446e2d6eb057
   languageName: node
   linkType: hard