Fiscal year variants in co.code &3 have inconsistent start date

What causes this issue?

The last day of the fiscal year for variant &V1& in company code &V3&
in Asset Accounting differs from the last day of the fiscal year for
variant &V2& in Financial Accounting.
However, both variants must have the same start and end date! Only the
periods within the fiscal year can be different.

System Response

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

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.