Custom Apps WebHook error 500


we have this webhook that already been using within the workflow, now we create an additional method to be use under the apps to get deals update. but when applying this webservices we got error 500 which we found clueless to see what the issue.


Welcome, @Han_Siong_Yap!

To clarify, you already successfully use as a workflow webhook URL, but when you try to use it as a webhookUrl for a webhook subscription, you receive a 500 error?

If so, what is your developer Hub ID and app ID? I would like to investigate your webhook subscription settings.