An unmatched row needs a real explanation. A duplicate statement warning needs a check of the existing import.
1. Check the row and account
Confirm the business, bank account, statement dates, amount direction, and reference.
2. Look for an existing transaction
Open Match transactions and compare candidate payments. If the money is already recorded, match it rather than creating another income or expense.
3. Review a duplicate import
If the importer reports a duplicate, check the existing statement and its rows. Do not upload the same file repeatedly or change a description merely to bypass the warning.
4. Resolve the actual difference
Review missing receipts, fees, date mapping, and unmatched rows. If no genuine explanation fits, keep the period open and ask your accountant or support to review it.