Forum Discussion
Incoming Webhooks giving an "Invalid webhook URL: Tenant verification failed for tenantID" error
Hello, I am using the Teams incoming webhooks and recently I have been getting a 400 error status and an "Invalid webhook URL: Tenant verification failed for tenantID" message when trying to send mes...
I have started receiving this error today as well - the last successful post was at 17:20 UTC from the system. It appears that it may have to do with the user-agent header. I was able to send one test message from PostMan @ 21:00 UTC with the user-agent header = PostmanRuntime/7.28.4 but now that is failing as well for the same reason as the system-generated Webhook posts.