We are trying to integrate with Slack through subscription webhooks. We are seeing the following error in Diagnostics > Subscription logs everytime the subscription is firing:
Failed to send subscription webhook request.
The subscription webhook https://hooks.slack.com/services/T3X...Yck failed, with a status of InternalServerError.
Octopus.Shared.ControlledFailureException: The subscription webhook https://hooks.slack.com/services/T3X...Yck failed, with a status of InternalServerError.
at Octopus.Server.Schedules.EventNotifications.NotificationCreator.d__12.MoveNext() in Z:\buildAgent\workDir\eec88466c176b607\source\Octopus.Server\Schedules\EventNotifications\NotificationCreator.cs:line 261
The error message appears to just indicate ‘InternalServerError’. What could cause this? We are currently on Octopus version 3.11.0
Thanks!