After migrating to QBO i want to adjust the date of inventory but i get error an adjustment date after the last transaction date for this item when it wasn't being tracke

Let's ensure you can adjust the quantity of your inventory in QuickBooks Online (QBO), farouqgp.

The error you’re encountering when adjusting inventory quantity occurs because you selected a date earlier than the item’s original start date.

In QuickBooks Online, each inventory item has an As-of date, which is essentially the date from which inventory tracking for that item begins. This date is typically set when you first create or start tracking the item in your system. If you enter an inventory quantity adjustment with a date earlier than the As-of date, QuickBooks will show an error because it cannot process inventory changes before tracking begins.

To fix this, you'll need to select an adjustment date that is the same as or later than the item’s As-of date. This ensures that the adjustment aligns with the period when inventory tracking was active for that item.

You can also refer to this article for detailed information about adjusting inventory in QuickBooks Online: Adjust inventory quantity on hand in QuickBooks Online.

For future reference, you can run an inventory report such as Sales by Product/Service Detail report to identify the best-selling items.

Should you have additional questions, the Community is always available to provide support.