From 5c3abd2db411385692e292bd1d5f106781ef9c67 Mon Sep 17 00:00:00 2001
From: Vikram Praveen Kumar <vipravee@microsoft.com>
Date: Wed, 17 Mar 2021 13:29:22 -0700
Subject: [PATCH] Fix event mapping and add a missing field

---
 .../stable/2018-01-01/AzureCommunicationServices.json     | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/specification/eventgrid/data-plane/Microsoft.Communication/stable/2018-01-01/AzureCommunicationServices.json b/specification/eventgrid/data-plane/Microsoft.Communication/stable/2018-01-01/AzureCommunicationServices.json
index de6017c5b246..528cbebbf7c6 100644
--- a/specification/eventgrid/data-plane/Microsoft.Communication/stable/2018-01-01/AzureCommunicationServices.json
+++ b/specification/eventgrid/data-plane/Microsoft.Communication/stable/2018-01-01/AzureCommunicationServices.json
@@ -296,7 +296,7 @@
       }
     },
     "AcsChatParticipantAddedToThreadEventData": {
-      "description": "Schema of the Data property of an EventGridEvent for an Microsoft.Communication.ChatParticipantAddedToThread event.",
+      "description": "Schema of the Data property of an EventGridEvent for an Microsoft.Communication.ChatThreadParticipantAdded event.",
       "allOf": [
         {
           "$ref": "#/definitions/AcsChatEventInThreadBaseProperties"
@@ -324,7 +324,7 @@
       }
     },
     "AcsChatParticipantRemovedFromThreadEventData": {
-      "description": "Schema of the Data property of an EventGridEvent for an Microsoft.Communication.ChatParticipantRemovedFromThread event.",
+      "description": "Schema of the Data property of an EventGridEvent for an Microsoft.Communication.ChatThreadParticipantRemoved event.",
       "allOf": [
         {
           "$ref": "#/definitions/AcsChatEventInThreadBaseProperties"
@@ -544,6 +544,10 @@
       "description": "Schema of common properties of all thread-level chat events",
       "type": "object",
       "properties": {
+        "transactionId": {
+          "description": "The transaction id will be used as co-relation vector",
+          "type": "string"
+        },
         "threadId": {
           "description": "The chat thread id",
           "type": "string"