Billing Purchase Order throws Notice: Total Inventory detail quantity must be equal to XX

The column Inventory Detail will appear on forms if Advanced Bin / Numbered Inventory Management feature is enabled. To verify, navigate to Setup > Company > Enables Features > Items & Inventory Tab.

To resolve this we need to remove the column on Vendor Bills.

1. Navigate to Setup > Customization> Transaction Forms
2. Look the preferred Vendor Bill
3. Under Screen Fields > Items, look for Inventory Detail.
4. Unmark the Show box
5. Save.