How to Record QuickBooks Memorized ACH Payments
A reader wrote to explain that she uses memorized transactions for monthly checks that are always for the same amount (such as rent). She has recently arranged to have some payments taken directly from the bank account. QuickBooks automatically inserts the next available check number, so when she creates the next physical check she's told the check number is already in use.
The fix is to enter ACH in the Check No. field of the memorized check in QuickBooks.