Removing items in workflow inbox
I want to remove items in the SBWP inbox of my user who has already resigned. These items are already processed. I just want to remove them from his inbox so that it wont be sent to SOST when a background job is run. Previously, I was able to do it using the SWIA but its taking more than 2 minutes to delete a workitem. I have 43,400plus workitems to be removed so I was hoping if there are better ways to do it.
Hoping for inputs from anyone.
Thanks in advance