Occurs: When import a transaction into QuickBooks Online the import fails with the error message "Duplicate Document Number Error : You must specify a different number..." and the import for that transaction fails
Cause: QuickBooks Online is set to not permit duplicate document numbers when you try to import a transaction with a DocNumber that has previously been used, QuickBooks rejects the transaction.
Resolution: There are a couple of ways to resolve this error
- You can change your settings in your QuickBooks Company File to permit duplicate document numbers by selecting the option in the QuickBooks Online > Account and Settings area to use Custom transaction numbers
- You can select the option in Zed Axis to use Auto Numbering
- You can modify your transactions number you are importing to avoid the duplication