Handling assigned task for deactivated users

Here is another way:
1. Fetch the list of deactivated users
2. Reactivate them
3. Delete them from the respective Assignment Groups (If all of the tasks assignment is done using only groups but not individuals)
4. Then automatically the tasks will be re-assigned to the respective Assignment Groups which will let you to handle the rest

Hope this helps!!

Here is another way:
1. Fetch the list of deactivated users
2. Reactivate them
3. Delete them from the respective Assignment Groups (If all of the tasks assignment is done using only groups but not individuals)
4. Then automatically the tasks will be re-assigned to the respective Assignment Groups which will let you to handle the rest

Hope this helps!!