Google Business messages api exception.

[yashgadhiya]

While sending back response to google business messages api, we are facing this exception.

com.google.api.client.googleapis.json.GoogleJsonResponseException: 403 Forbidden { "code" : 403, "errors" : [ { "domain" : "global", "message" : "Your partner account doesn't have access to this conversation.", "reason" : "forbidden" } ], "message" : "Your partner account doesn't have access to this conversation.", "status" : "PERMISSION_DENIED" }

Please help if someone has faced similar issues, we have enabled the google business messages api for our project and we are using the proper service account credentials to send back the response.