How To Fix KO304 - & is after valid period on the factory calendar

KO304 - Overview

• Message type: E = Error

• Message class: KO - Master data for CO orders

• Message number: 304

• Message text: & is after valid period on the factory calendar

What causes this issue?

You have entered a date which lies outside the appropriate validity
period.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter an appropriate date from the validity period.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KO304 - & is after valid period on the factory calendar ?

  The SAP error message KO304 indicates that a certain operation or activity is being attempted outside of the valid period defined in the factory calendar. This typically occurs in the context of production planning or controlling when trying to post or process transactions that are not aligned with the defined working days or periods in the factory calendar.
  
  Cause:
  
  Invalid Date: The date you are trying to use for a transaction (like production order, goods movement, etc.) falls outside the valid dates defined in the factory calendar.
  Factory Calendar Settings: The factory calendar may not be set up correctly, or the specific period you are trying to access may have been closed or is not active.
  Period Closing: The period for which you are trying to post may have been closed in the system, preventing any further postings.
  
  
  Solution:
  
  
  Check Factory Calendar: Verify the factory calendar settings in the system. Ensure that the date you are