Diagnosis
The selection cannot be carried out because you have selected periodsfrom different fiscal years or calendar years. This is not possible ifyou use two time characteristics for a planning period at OTB level, forexample, 0FISCPER3 and 0FISCYEAR for the positng periods of a fiscalyear or 0CALMONTH2 and 0CALYEAR for the month of a calendar year.

Procedure
Limit the selection of periods to one fiscal year or one calendar year.
If you want to be able to select periods from different fiscal orcalendar years in the release workbench, you need to use characteristic0FISCPER or 0CALMONTH in the OTB level.