Down payment clearing does not reference an invoice

What causes this issue?

You post a down payment clearing, in other words, a transfer from the
special general ledger to the subsidiary ledger. No invoice or credit
memo is involved in this.

System Response

Down payments represent a special type of payment in Funds Management.
The correct update of down payment processes is only guaranteed with
the <LS>Payment Selection</>program if down payments reference an
invoice or credit memo when they are transferred to the subsidiary
ledger (down payment clearing).

How to fix this error?

<ZH>Down Payment Clearing</>
Only clear down payments with invoices or credit memos.
<ZH>Down Payment Reimbursement</>
To reimburse a down payment, you must post a down payment.
You are not allowed to reimburse down payments with payments or
payments with down payments.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.