Changing the fiscal year variant leads to inconsistencies

What causes this issue?

Substitution of remanufactured products:
Changing the fiscal year variant for supplier capacities can lead to
inconsistencies.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.