How To Fix AJ239 - Value not permissible for a month: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: AJ - Billing program

• Message number: 239

• Message text: Value not permissible for a month: &1

What causes this issue?

The number of months you specified (&v1&) is not between 1 and 12.

System Response

Processing is canceled.

How to fix this error?

Allocate a number between 1 and 12 to the corresponding operands in the
facts for the rate, the rate category or the installation.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AJ239 - Value not permissible for a month: &1 ?

  The SAP error message AJ239, which states "Value not permissible for a month: &1," typically occurs in the context of financial or controlling modules when a user attempts to enter a value that is not valid for a specific month in a financial document or report.
  
  Cause:
  
  Invalid Month Value: The error usually arises when the month value entered is outside the permissible range (e.g., a month value of 0 or 13).
  Closed Periods: The month may be closed for posting, meaning that no further entries can be made for that period.
  Incorrect Configuration: There may be configuration issues in the fiscal year variant or period control settings that restrict the entry of certain values.
  Data Entry Error: A simple typographical error when entering the month value.
  
  
  Solution:
  
  Check Month Value: Ensure that the month value you are entering is between 1 and 12. If you are using a different format (like fiscal months), ensure that the