SAP Message BK125 - Posting date is not within validity period of run schedule &

Diagnosis
You can only post run schedule headers if the posting date fallswithin its validity period.
Posting date &V2& of the cost accounting document is outside thevalidity period of run schedule header &V1&.

System Response
The run schedule header entered cannot be posted.

Procedure
Enter a different run schedule header with a validity period thatincludes posting date &V2&.
Alternately, delete your entries.