how to add activityType in app manifest

Question

Post: https://graph.microsoft.com/v1.0/teams/{{TeamId}}/sendActivityNotification
{
"topic": {
"source": "entityUrl",
"value": "https://graph.microsoft.com/v1.0/teams/{teamid}"

},
"activityType":"message",
"previewText": {
    "content": "New Task Created"
},
"recipient": {
    "@odata.type": "microsoft.graph.aadUserNotificationRecipient",
    "userId": "232454678"
},
"templateParameters": [
    {
        "name": "taskId",
        "value": "12322"
    }
]

}

when i try to send notification to msteam bot using graph api(postman) it gave me below type of error ,so how to resolve this problem.

"error": {
"code": "BadRequest",
"message": "Specified activity with type 'message' could not be found in the app manifest.",
"innerError": {
"date": "2021-09-08T10:15:35",
"request-id": "1042e7c5-38b4-4c38-8e32-15970f668121",
"client-request-id": "1042e7c5-38b4-4c38-8e32-15970f668121"
}
}
}

Answer 1

Hi, any update on this forum? I am also facing the same issue. once manifiest file is uploaded APP studio remove the Activities section, due to that I cannot testing the SendActivityNotification