Source field for fiscal assignment of information is missing

What causes this issue?

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

System Response

How to fix this error?

To be able to determine the end of the fiscal year, you need a
source field specification, in addition to the date specification, for
the fiscal assignment of the information. This can be a company code,
a controlling area or a valuation area. The relevant field reference is
specified in ILM Customizing
.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.