How To Fix KO339 - Maintenance not possible; validity date is in the past

KO339 - Overview

• Message type: E = Error

• Message class: KO - Master data for CO orders

• Message number: 339

• Message text: Maintenance not possible; validity date is in the past

What causes this issue?

You are trying to process a product cost collector that is no longer
valid. When the <LS>Valid to </> date is reached, you cannot make any
further changes.

How to fix this error?

Check your input.

Error message extract from SAP system. Copyright SAP SE.

KO339 - Details

• The SAP error message KO339, which states "Maintenance not possible; validity date is in the past," typically occurs when you are trying to perform maintenance on a cost object (such as a cost center, internal order, or project) that has a validity date that is earlier than the current date. This can happen in various scenarios, such as when you are trying to change or post to a cost object that is no longer valid.
  
  Cause:
  
  Past Validity Date: The cost object you are trying to maintain has a validity date that is set in the past. This means that the object is no longer active for the period you are trying to work with.
  Configuration Settings: The system may be configured to restrict changes to cost objects that are not valid for the current date.
  Posting Period: The posting period may be closed, preventing any changes or postings to that cost object.
  
  
  Solution:
  
  Check Validity