I would like to use Hubspot webhook action in workflows to send to the GTM server side to process further. When I try using the server url, nothing happens and I get a 400 error.
Look like you don’t set up the Client on GTM SS that will handle these requests.
Handling webhooks with GTM SS is tricky.
I can recommend you to check this article it describes how to handle webhooks with GTM SS.
can you see inside my gtm SS container?
We don’t any have access to GTM SS containers of our customers.