How to build on merge, not just PR (pipeline/bitbucket webhook)

I have a pipeline created and a webhook made from bitbucket that builds when I create a pull request. I’d like to have the system build the parent branch on merge. But when I merge, nothing happens.

Screenshots of my settings attached.

What am I missing?

Can you share your Build strategies configuration?

Where is that? In the jenkins config? I am running a multibranch pipeline so I don’t see that section spelled like that.

A merge is normally treated as a push by Jenkins. There should be no required configuration unless BitBucket doesn’t “push” merges into the destination branch.