After installing the JIRA connector to Bitbucket (both cloud instances) there is a webhook in BB that triggers a workflow transition when a pull request is created. However, there is no webhook when a pull request is merged or declined. This means that transitions associated with these events are not executed.
Then I tried adding my own webhook through the UI using the same address as the existing "JIRA" webhook (https://host/rest/bitbucket/1.0/repository/webhook) which gets fired on pullrequest:rejected and pullrequest:fulfilled. The requests are sent correctly and return with 204 but there is no reaction in JIRA.
Did anyone succeed in getting this to work? It seems like a very common problem.