diff --git a/samples/bot-proactive-messaging-teamsfx/.vscode/tasks.json b/samples/bot-proactive-messaging-teamsfx/.vscode/tasks.json
index 850692c978..a7ec495b43 100644
--- a/samples/bot-proactive-messaging-teamsfx/.vscode/tasks.json
+++ b/samples/bot-proactive-messaging-teamsfx/.vscode/tasks.json
@@ -53,8 +53,8 @@
                         "access": "public",
                         "writeToEnvironmentFile": {
                             // Keep consistency with upgraded configuration.
-                            "endpoint": "PROVISIONOUTPUT_BOTOUTPUT_SITEENDPOINT",
-                            "domain": "PROVISIONOUTPUT_BOTOUTPUT_VALIDDOMAIN"
+                            "endpoint": "PROVISIONOUTPUT__BOTOUTPUT__SITEENDPOINT",
+                            "domain": "PROVISIONOUTPUT__BOTOUTPUT__VALIDDOMAIN"
                         }
                     }
                 ],
diff --git a/samples/bot-proactive-messaging-teamsfx/aad.manifest.json b/samples/bot-proactive-messaging-teamsfx/aad.manifest.json
index 9cb0d8cdaf..7f9f9d1c0b 100644
--- a/samples/bot-proactive-messaging-teamsfx/aad.manifest.json
+++ b/samples/bot-proactive-messaging-teamsfx/aad.manifest.json
@@ -93,7 +93,7 @@
     ],
     "replyUrlsWithType": [
         {
-            "url": "${{PROVISIONOUTPUT_BOTOUTPUT_SITEENDPOINT}}/auth-end.html",
+            "url": "${{PROVISIONOUTPUT__BOTOUTPUT__SITEENDPOINT}}/auth-end.html",
             "type": "Web"
         }
     ]
diff --git a/samples/bot-proactive-messaging-teamsfx/appPackage/manifest.json b/samples/bot-proactive-messaging-teamsfx/appPackage/manifest.json
index 58591c81de..49bfafb508 100644
--- a/samples/bot-proactive-messaging-teamsfx/appPackage/manifest.json
+++ b/samples/bot-proactive-messaging-teamsfx/appPackage/manifest.json
@@ -61,6 +61,6 @@
         "messageTeamMembers"
     ],
     "validDomains": [
-        "${{PROVISIONOUTPUT_BOTOUTPUT_VALIDDOMAIN}}"
+        "${{PROVISIONOUTPUT__BOTOUTPUT__VALIDDOMAIN}}"
     ]
 }
\ No newline at end of file
diff --git a/samples/bot-proactive-messaging-teamsfx/bot/teamsBot.js b/samples/bot-proactive-messaging-teamsfx/bot/teamsBot.js
index 858de531bb..ce195ed28a 100644
--- a/samples/bot-proactive-messaging-teamsfx/bot/teamsBot.js
+++ b/samples/bot-proactive-messaging-teamsfx/bot/teamsBot.js
@@ -25,7 +25,7 @@ class TeamsBot extends TeamsActivityHandler {
       
       for (let cnt = 0; cnt < membersAdded.length; cnt++) {
         if (membersAdded[cnt].id !== context.activity.recipient.id) {
-          const welcomeMessage = `Welcome to the Proactive Bot sample.  Navigate to ${process.env.PROVISIONOUTPUT_BOTOUTPUT_SITEENDPOINT}/api/notify to proactively message everyone who has previously messaged this bot.`;
+          const welcomeMessage = `Welcome to the Proactive Bot sample.  Navigate to ${process.env.PROVISIONOUTPUT__BOTOUTPUT__SITEENDPOINT}/api/notify to proactively message everyone who has previously messaged this bot.`;
           await context.sendActivity(welcomeMessage);
         }
       }
@@ -38,7 +38,7 @@ class TeamsBot extends TeamsActivityHandler {
       this.addConversationReference(context.activity);
 
       // Echo back what the user said
-      await context.sendActivity(`You sent '${context.activity.text}'. Navigate to ${process.env.PROVISIONOUTPUT_BOTOUTPUT_SITEENDPOINT}/api/notify to proactively message everyone who has previously messaged this bot.`);
+      await context.sendActivity(`You sent '${context.activity.text}'. Navigate to ${process.env.PROVISIONOUTPUT__BOTOUTPUT__SITEENDPOINT}/api/notify to proactively message everyone who has previously messaged this bot.`);
       await next();
     });
 
diff --git a/samples/bot-proactive-messaging-teamsfx/env/.env.dev b/samples/bot-proactive-messaging-teamsfx/env/.env.dev
index 7de008175a..2f5026b787 100644
--- a/samples/bot-proactive-messaging-teamsfx/env/.env.dev
+++ b/samples/bot-proactive-messaging-teamsfx/env/.env.dev
@@ -1,5 +1,5 @@
 # This file includes environment variables that will be committed to git by default.
 TEAMSFX_ENV=dev
 APP_NAME_SUFFIX=dev
-CONFIG__MANIFEST__APPNAME__SHORT=Proactive Messages Demo
-CONFIG__MANIFEST__APPNAME__FULL=Proactive Messages Demo
+CONFIG_APPNAME_SHORT=Proactive Messages Demo
+CONFIG_MANIFEST_APPNAME_FULL=Proactive Messages Demo
\ No newline at end of file
diff --git a/samples/bot-proactive-messaging-teamsfx/teamsapp.local.yml b/samples/bot-proactive-messaging-teamsfx/teamsapp.local.yml
index c6b8e4c3a3..87e20c1944 100644
--- a/samples/bot-proactive-messaging-teamsfx/teamsapp.local.yml
+++ b/samples/bot-proactive-messaging-teamsfx/teamsapp.local.yml
@@ -26,7 +26,7 @@ provision:
     with:
       botId: ${{BOT_ID}}
       name: ${{CONFIG_APPNAME_SHORT}}-bot
-      messagingEndpoint: ${{PROVISIONOUTPUT_BOTOUTPUT_SITEENDPOINT}}/api/messages
+      messagingEndpoint: ${{PROVISIONOUTPUT__BOTOUTPUT__SITEENDPOINT}}/api/messages
       description: ""
       channels:
         - name: msteams
@@ -59,7 +59,7 @@ deploy:
     with:
       target: ./bot/.env.teamsfx.local
       envs:
-        INITIATE_LOGIN_ENDPOINT: ${{PROVISIONOUTPUT_BOTOUTPUT_SITEENDPOINT}}/auth-start.html
+        INITIATE_LOGIN_ENDPOINT: ${{PROVISIONOUTPUT__BOTOUTPUT__SITEENDPOINT}}/auth-start.html
         M365_APPLICATION_ID_URI: api://botid-${{BOT_ID}}
 
   # Run npm command