How To Fix /SAPAPO/PPM_UPGRADE1009 - Error while reading external description of plans in PPMs

/SAPAPO/PPM_UPGRADE1009 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PPM_UPGRADE1 -

• Message number: 009

• Message text: Error while reading external description of plans in PPMs

Self-Explanatory Message

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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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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PPM_UPGRADE1009 - Error while reading external description of plans in PPMs ?

  The SAP error message /SAPAPO/PPM_UPGRADE1009 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue related to reading the external descriptions of plans in the Production Planning and Detailed Scheduling (PP/DS) module. This error can arise during system upgrades or data migrations, particularly when there are inconsistencies or missing data in the planning books or data structures.
  
  Cause:
  
  Data Inconsistencies: The error may be caused by inconsistencies in the planning data, such as missing or incorrectly configured external descriptions for the planning books or data views.
  Upgrade Issues: If the system has recently been upgraded, there may be compatibility issues with the existing data structures or configurations.
  Missing Authorizations: Sometimes, the user executing the transaction may not have the necessary authorizations to access the required data.
  Configuration Errors: Incorrect configuration settings in the APO system can lead to this error.
  
  
  Solution:
  
  
  Check Data Consistency: 
  
  Use transaction /SAPAPO/PPM to check the