Company code &1 and contr. area &3 have differing fiscal year variants

What causes this issue?

Company code &V1& has fiscal year variant &V2&, but the controlling area
&V3& to which the company code is assigned has the fiscal year variant
&V4&.

System Response

In SAP S/4HANA Finance the fiscal year variants must be identical.
The reason for this is that the postings in FI and CO share the same
persistence in the database (table ACDOCA).

How to fix this error?

You can do the following:
Either adjust the fiscal year variant in the
<DS:TRAN.OKKP>master data of the controlling area</>, or
Adjust the fiscal year variant in the
<DS:TRAN.OBY6>company code</>.

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.