How To Fix /SAPAPO/PDEM026 - No entries in Customizing for entry/maintenance of historical data

/SAPAPO/PDEM026 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PDEM -

• Message number: 026

• Message text: No entries in Customizing for entry/maintenance of historical data

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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/SAPAPO/PDEM026 - Details

• The SAP error message /SAPAPO/PDEM026 No entries in Customizing for entry/maintenance of historical data typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the configuration related to the maintenance of historical data.
  
  Cause:
  This error message indicates that there are no entries in the customizing settings for the maintenance of historical data in the APO system. This can happen due to several reasons:
  
  Missing Customizing Entries: The necessary customizing settings for historical data maintenance have not been defined in the system.
  Incorrect Configuration: The configuration might be incomplete or incorrectly set up, leading to the system not being able to find the required entries.
  Transport Issues: If the customizing settings were transported from another system, there might have been issues during the transport process that resulted in missing entries.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Customizing Settings:
  
  Go to the SAP Easy Access screen and