How To Fix KM020 - Period(s) to be changed must include all of the period of validity

KM020 - Overview

• Message type: E = Error

• Message class: KM - Error messages for Profit Center Accounting

• Message number: 020

• Message text: Period(s) to be changed must include all of the period of validity

What causes this issue?

The controlling area and the profit center group (subhierarchy) must be
identical in all existing valid periods.

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?

Select a period which covers all existing valid periods.

Error message extract from SAP system. Copyright SAP SE.

KM020 - Details

• The SAP error message KM020 ("Period(s) to be changed must include all of the period of validity") typically occurs in the context of SAP Controlling (CO) when you are trying to change a period or a set of periods in a transaction that requires the entire validity period to be included in the change.
  
  Cause:
  This error usually arises when:
  
  You are attempting to change a period that does not encompass the entire validity range of the object you are working with (e.g., a cost center, internal order, or other controlling objects).
  The periods you selected for the change do not cover the full range of the validity period defined for the object in question.
  
  
  Solution:
  To resolve the KM020 error, you can take the following steps:
  
  
  Check Validity Period: Verify the validity period of the object you are trying to change. You can do this by navigating to the relevant master data (e.g., cost center master