My use case is to update t set the build number on a custom field, then update the status of the ticket and post a comment.
If the custom field I want to update is required the transition fails. I suspect this is because the update of the field happens after the attempt to update the transition.
It would be nice if we can assign order to the actions to be performed by the plugin.

For my case:

Update custom field : 1
Update Transition: 2
Post Comment: 3