Hello there, @Bagya1111. It's nice to see you in the Community. I'd be happy to share some details as to why this inventory error occurred in QuickBooks Desktop (QBDT).
This error will show if you are going to adjust the inventory quantity of an item. You can proceed to do that, however, make sure that the changes are not related to any other open bills from your vendor that offers this item.
If it's linked, you don't need to adjust the inventory. It is because it will automatically update the quantity if you've paid a bill to your vendor that offers the item.
Another reason to adjust an inventory is if you've received a refund from your customer and wanted to give back the item. To know more details about the process, you can check out this article: Adjust your inventory quantity or value in QuickBooks Desktop.
It's also best to consult your accountant for the best advice on any scenarios that may affect your books. You can look for an accountant near you through this link: Find a QuickBooks ProAdvisor - Intuit.
I'll be around if you need further assistance with this process. Please don't hesitate to reach back out. Take care and enjoy your day!
