Turn off check number requirement
Not all accounts are check-based. For example, the concept of check number is meaningless for a depository account. By default, CheckNumber (or one of the fields that contains CheckNumber) is required. However, you can turn off this requirement.
1. From the Main Screen, select File, then General, then Options.
2. Under the Import tab, find the option labeled "Check number mapping required?" Set it to "Off."
3. Click Close.