The selected attribute System.WorkflowUserTask.Reason no longer exists
Hi colleagues, We recently upgraded an app from 9.6.8 to 9.15.1. But when we are attempting to upgrade it, an error displayed in which, in generalization is pointing to this entity. The “Reason” attribute is now disppeared on 9.15.1 but in 9.6.8, it was still there another problem is system modules cannot be edited. So what do we need to do in order to have a successful upgrade? Thanks much!