Configuration error in document spltting; posting not possible

What causes this issue?

You are posting an invoice with a down payment clearing from Logistics
invoice verification. As new General Ledger Accounting has been
activated in your system with document splitting, the down payment
clearing needs to be split on the basis of the invoice items. To ensure
that document splitting is performed correctly in this case, you need to
activate document splitting <ZH>For Each Logical Transaction</> in the
document splitting rule for business transaction &V2& and business
transaction variant &V3& in splitting method &V1&.

System Response

The document cannot be posted..

How to fix this error?

To enable the down payment clearing to be split in accordance with how
it originated, make the following setting in Customizing for <ZH>General
Ledger Accounting (New)</>:
Choose <DS:SIMG.SIMG_FAGL_SPLIT_02DC>Business Transactions -> Document
Splitting -> Extended Document Splitting</> and, in the detail screen
for the header data of the document splitting rule used (see above), set
the <ZH>For Each Logical Transaction</> indicator in the <ZK>Further
subdivide document</> group box.

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.