Can I manually enter an automatic receipt?

Yes, if the customer remits a manual document for a transaction that was supposed to be paid by automatic receipt, you can manually enter this as a standard receipt.

When you create the receipt, select a receipt method assigned to a receipt class that has a creation method of Automatic.

Receivables treats this receipt like any other automatic receipt. When you remit the receipt to the bank, the funds are transferred from the customer bank account to your bank account.