When you run an edit that only updates inventory levels the Bulk Product Editor is able to take advantage of a different Shopify API and will update inventory levels in batches of 100. This is significantly faster than updating them one-by-one.
Previously, if you undid an inventory level edit, the app would go through the inventory levels one-by-one to revert them. Now, undoing an inventory level edit will also process the inventory levels in batches of 100, leading to faster inventory level edit undos.
If you have difficulties with undoing an inventory level edit you can also click on Export Log to download a CSV file of the previous inventory levels and then create a new spreadsheet edit using that.
