Val. grouping code & already alloc. to chart of accts. &

What causes this issue?

A valuation grouping code is a supradefinition of the valuation area.
It is intended to facilitate the management of standard accounts for
automatic posting within the framework of inventory management and
invoice verification, by minimizing the number of entries.
Valuation areas that are to be treated in the same way in terms of
account assignment are to be defined with the same valuation grouping
code. Valuation grouping codes either represent a fine differentiation
within a chart of accounts or correspond to one chart of accounts (i.e.
1:1). Therefore, only valuation codes that relate (via the company
code) to the same chart of accounts should be grouped together under a
valuation grouping code.

System Response

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

WHAT_TO_DO&
Please change the <DS:TRANS.OMWD>valuation grouping code</> for
valuation area &V3& accordingly.

Error message extract from SAP system. Copyright SAP SE.