Rachel,
In E9 this fix is not part of the Epicor menu.
It’s either part of the Conversion Programs that is usually installed on the Epicor server but I do not recall it’s ID or it’s a fix you need to request from Epicor Support.
I would recommend you call Epicor Support and ask them what is the E9 equivalent for Epicor 10’s Refresh Part Qty & Allocations.
Here is another post that might help you: