"Paid (manually)" does not replace an actual payment — in the cash register or bank.
Documents with manual payment set will not appear in the cash book or tax records statement in the tax evidence.
How the flag affects individual outputs
Manual payment only changes the payment status on the document. It does not create a link to a bank or cash transaction, so each output behaves differently depending on what it works with.
Balance (Saldo) - the document remains in it. The balance works with a matching symbol and the sum of the entire group of accounting entries, but a manually paid document has no counterpart against which it can be settled.
Overdue unpaid receivables and payables - the document drops out of the output, because it is governed by the payment status of the document, including manual payment.
Payment status as of date - the document likewise drops out of the output and will no longer be offered for inclusion in a payment order.
⚠️ Receivables overviews then look clean, but the balance will diverge from the trial balance, because the document does not exit the balance of the account it is posted to. Therefore, use manual payment primarily in cases where you do not maintain full accounting in the application, including bank and cash register records.
An explanation of the differences between individual overviews can be found in the article Matching Symbol in the Balance. The procedure for identifying discrepant balances is described in the article Checking Discrepant Balances.