Empty content warning

When the log contains the following warning

{
   "workspaceId": "ws-efdc5b42-b051-11ec-b123-4567ac120002",
   "message": {
       "log": "Message has been modified because the content was empty."
       "level": "WARN"
   },
   "component": "alertmanager"
}

This means that the Alert manager template resolved the outbound alert to an empty message.

Action to take

Validate your Alert manager template and ensure that you have a valid template for all receiver pathways.