3552427 - Error: Posting date invalid due to closed accounting period; contact Accounting - Despite Period Being Open

You attempt to manually clear open Customer Invoice XYZ in the Account Monitor.
Immediately an error shows as 'Posting date invalid due to closed accounting period; contact Accounting (KBA: 1956938)'.
You enter a Posting Date referring to an open accounting period in all relevant Sets of Books; for example 31.12.2024.
This, however, does not eliminate the error. 

SAP Business ByDesign

1. Go to Receivables work center.
2. Go to Customers view.
3. Go to Customer Accounts object work list.
4. Select the desired account.
5. Click View button.
6. Click Trade Receivables tab.
7. Click Invoices / Payments tab.
8. Select Invoice XYZ and click Clear Manually.

An error shows as 'Posting date invalid due to closed accounting period; contact Accounting (KBA: 1956938)'.

Customer Invoice XYZ has a Posting Date referring to a closed financial period; for example 31.10.2023.
Usually you would attempt to clear multiple items. The first selected item (here the only item invoice XYZ) - will default the Posting - and Clearing Date in the clearing object.
Since October 2023 is blocked this error is provoked.

• In order to clear Invoice XYZ, first select an AR item referring to an open period.
• Such documents include invoices, credit memos, payments, other receivable/payables.
• You will now be able to effect a clearing with a Posting Date/Clearing Date - earliest consistent with the Posting Date of selected AR item in an open period.

KBA , SRD-FIN-ACR , Receivables , Problem