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QBWin.log: LVL_ERROR--Error: Verify item history target quantity on order mismatch error

by Intuit • Image Alt Text •
Image Alt Text Updated 5/24/2026 19:45

A mismatch between your item history and certain items on orders can occur if the ItemHistUpdateEngine fails to update the item information. The message A data problem prevents QuickBooks from continuing appears while backing up your file and your QBWin.log shows the following error after verifying data:

LVL_ERROR--Error: Verify item history Target quantity on order mismatch error

Rebuilding the company file alone can resolve the issue, but editing the items specified in the log may be necessary.

Solution 1: Rebuild and verify

Reminder:
Before you begin to rebuild and verify your file, make sure it is saved locally in your computer.

  • Rebuild data

    • Go to the File menu, then select Utilities > Rebuild Data.

    • When prompted to back up the file, select OK.

    • Once Rebuild has completed appears, select OK.

  • Verify data

    • Go to the File menu, then select Utilities > Verify Data.

    • When QuickBooks detected no problem with your data appears, select OK. You can now continue using the file.

    • If after verifying, QuickBooks detected the same problem, perform the next solution.

For detailed instruction on rebuilding and verifying your file, see Resolve data damage on your company file.

Solution 2: Manually edit transaction shown in QBWIN.log

  • Open the QBWin.log.

    • While QuickBooks is open, press F2 to open the Product Information window.

    • Press F3 to open the Tech Help window, then go to the Open File tab.

    • Under the Open File tab, look for QBWIN.log, then select Open.

  • Identify the damaged item/s through the QBWin.log.

    • Once the QBWin.log is open, press Ctrl+F to bring up the Find window.

    • Type the error, then press Enter.

    • Take note of the order, item, and quantity specified.

  • Recreate the damaged item.

    • Back in QuickBooks, open the order specified in the log.

    • Delete the item (not the entire order) shown in the log, then select Save & Close.

    • Return to the order and reenter the deleted item and its quantity. Select Save & Close.

  • Verify your file again.

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