How To Fix APEO026 - Relationship periods do not match

APEO026 - Overview

• Message type: E = Error

• Message class: APEO - Investment Programs in Enterprise Organization

• Message number: 026

• Message text: Relationship periods do not match

What causes this issue?

You want to assign a program position to an organizational unit of the
enterprise organization. Controlling area &v1&, which is set in the
enterprise organization for this organizational unit, is not valid for
the entire relationship period of the program position. However,
assigning a program position to the enterprise organization requires
that a cost center is for the entire time period.

System Response

Assigning the program position is not allowed.

How to fix this error?

Change the validity periods of the assignments so that the relationship
period of the program position is completely within the relationship
period of the controlling area.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

APEO026 - Details

• The SAP error message APEO026, which states "Relationship periods do not match," typically occurs in the context of SAP's Advanced Planning and Optimization (APO) module, particularly when dealing with master data relationships, such as those between products, locations, or resources.
  
  Cause:
  The error arises when there is a mismatch in the time periods defined for relationships in the system. This can happen due to several reasons, including:
  
  
  Inconsistent Time Periods: The time periods defined for the source and target objects in a relationship do not align. For example, if a product is valid for a certain period but the location it is related to has a different validity period, this error can occur.
  
  
  Missing Data: If there are missing or incomplete entries in the master data that define the relationship, it can lead to this error.
  
  
  Incorrect Configuration: The configuration settings for the relationship might not be set up correctly, leading to discrepancies in the