According to the ticket #2474438. The problem with the Send button is that it shows OK even when webhook is turned off on your side. Is there any reason why you don't show the blocked state for the customers? We burned several hours to check our side to find why we didn't receive any unsub event (except the test calls). We read your documentation, it doesn't say that after 24 hours of retrying the event url will be blocked (which is acceptable, but please note it in the documentation), it says you stop sending more messages.
According to the ticket #2474438. The problem with the Send button is that it shows OK even when webhook is turned off on your side. Is there any reason why you don't show the blocked state for the customers? We burned several hours to check our side to find why we didn't receive any unsub event (except the test calls). We read your documentation, it doesn't say that after 24 hours of retrying the event url will be blocked (which is acceptable, but please note it in the documentation), it says you stop sending more messages.