Calendar Validation Report Program completed with warning

Hi,

I have defined calendar for 2021 year but when Calendar Validation Report concurrent program completed with warning.

The following periods have date gaps:

  Calendar Validation Report                       Report Date: 28-OCT-2020 14:31
                                                                                                             Page:     1  of       2

          From Year:  2021
            To Year:  2021

           Calendar:  UNPAD KALENDER
        Period Type:  15 BULAN


 The following periods have date gaps:

 Before Period      After Period     Gap Start Date      Gap End Date
 ------------------ ---------------  ------------------- ----------------
 AUG-21             SEP-21           22-AUG-21           31-AUG-21



 The following periods overlap:

  ------------ Overlaps With ------------
 Period 1             Period 2
 -------------------  --------------------


                         ***** No Violations Found *****

Thanks

Abdul