How To Fix KA391 - Process special periods and normal periods separately

KA391 - Overview

• Message type: E = Error

• Message class: KA - CO Overhead Costs: Overhead, Accrual Calculation

• Message number: 391

• Message text: Process special periods and normal periods separately

What causes this issue?

Period &V1& is a special period in fiscal year variant &V2& for
controlling area &V3&. The final normal period is period &V4&.

System Response

Processing can only be carried out for normal periods.

How to fix this error?

Check your entries.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KA391 - Process special periods and normal periods separately ?

  The SAP error message KA391, which states "Process special periods and normal periods separately," typically occurs in the context of controlling (CO) when you are trying to post or process transactions that involve both special periods and normal periods in a way that is not allowed by the system.
  
  Cause:
  This error arises because SAP requires that postings to special periods (which are typically used for year-end closing activities) and normal periods (which are used for regular accounting) be handled separately. The system enforces this separation to maintain the integrity of financial data and ensure that special period transactions do not interfere with normal period transactions.
  
  Solution:
  To resolve the KA391 error, you can take the following steps:
  
  
  Check Posting Periods: Ensure that you are not trying to post to both special and normal periods in the same transaction. Review the periods you are working with and confirm that you are only using one type