How To Fix KO305 - & is before valid period on the factory calendar

KO305 - Overview

• Message type: E = Error

• Message class: KO - Master data for CO orders

• Message number: 305

• Message text: & is before 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 a date from the appropriate validity period.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KO305 - & is before valid period on the factory calendar ?

  The SAP error message KO305 indicates that there is an issue related to the validity period of a cost object, such as a cost center or internal order, in relation to the factory calendar. Specifically, the error message "is before valid period on the factory calendar" suggests that the date you are trying to use for a transaction or posting falls outside the valid period defined in the factory calendar for that cost object.
  
  Cause:
  
  Invalid Date: The date you are trying to use for the transaction is earlier than the start date defined in the factory calendar for the relevant cost object.
  Factory Calendar Settings: The factory calendar may not be set up correctly, or the validity period for the cost object may not cover the date you are trying to use.
  Cost Object Configuration: The cost object (e.g., cost center, internal order) may have a defined validity period that does not include