Details
When you create a job assignment manually there is a checkbox option to enable HR Import.
This is the only way in the UI to toggle this on/off to allow these job
assignments to be updated via HR import. On a large system with lots of users this could be a laborious process
to identify and update each record individually to switch on HR Import
setting for the job assignment
Suggestion
Partner has suggested that there should be an option in the UI to help identify and update job assignment records that do/do not have the HR Import option enabled. (i.e similar to the toggle HR Import option that is currently available in Users > Accounts > Bulk User Actions.