SAP Message UGMD566 - Starting period &2 is greater than ending period &3 in table &1

Diagnosis
Data conversion is running for data records using Starting FiscalYear/Period and To Fiscal Year/Period in database table &V1&.A conflict has been identified between the starting data and theending data. The starting value is &V2&, and the
ending value is &V3&.
The starting time is greater than the ending time. Thisproblem may have been caused by an inconsistency in the data.Alternatively, the source and target fiscal year variants may not becompatible.

System Response
The data record is nevertheless converted and saved. The inconsistency c
annot be resolved automatically during the conversion.

Procedure
Analyze the entries in database table &V1&, and try to remove anyinconsistencies before the conversion run is executed. Check thesettings for the fiscal year variant and make changes, if required.