Does the webhook subscription still exist or has it been deleted?
Have your tried testing the webhook being sent to another location in case it's your tech stack being the problem?
First step is confirming that the webhook subscription still exists.
Since it's bound to that key, you should first check to ensure it has not been deleted. If it has, that quickly explains why you're not seeing anything.
Do a GET request with that key and see what comes back.
Sure I will try this.
Also, we are getting this message in our private apps section,
And this app credentials is called in our salesforce code, when we do a request, is send bake bad data error.
Sounds like you're using old and unsupported versions of the API.
Also quite possible this relates to your webhook issue depending on the API version that was requested.
Also as suggested earlier, we tried the GET method and this is what we received in our debug logs,
16:31:03:268 USER_DEBUG |DEBUG|calloutResponse::System.HttpResponse[Status=Bad Request, StatusCode=400]
We're experiencing a similar situation that started about the same time as yours. Our Shopify store has stopped communicating with our Learning Management System (LMS). We've updated our webhooks to the current API version but it is still not working...are you still having troubles?
I was able to resolve the issue by specifying a location_id when creating fulfillments
Thank you for you help @JasonW .