What to check
- Pending transactions: open the sync’s Settings. When Include pending transactions is enabled, a bank can give the settled transaction a new ID and create a second destination record.
- Other import paths: check whether the same account is also being imported manually, through another tool, or into the same destination through another sync.
- The affected destination: confirm whether both copies are in the same spreadsheet, database, budget, or webhook consumer.
- The Activity Feed: check whether the latest run reports records as added or deduplicated.

