Diagnosis
The posting date entered is not within one of the permitted posting periods (current period/previous period).
This can be due to one of two reasons:
The correct current period has not been set in the system.
For the system, the first of the entered periods is the current period. At the beginning of a new period, your systems administrator must change the current period in the material master record, using the function "Shift periods". This has not yet been done.
You have entered a wrong date in the field "Posting date".
Procedure
Check the posting date and correct it if necessary. If your input is correct, inform your systems administrator that the "period shifting" (period-end closing) process has not yet been completed.
SOLUTION:
STEP 1: Go to Transaction Code MMPV > Enter Company Code and Period > Execute
Thanks,
Adharsh