How To Fix /SAPAPO/PDEM123 - Error when generating step due to supersession (see application log)

/SAPAPO/PDEM123 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PDEM -

• Message number: 123

• Message text: Error when generating step due to supersession (see application log)

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.

Unfortunately, there isn't any extra information in this error notice.

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/SAPAPO/PDEM123 - Details

• The SAP error message /SAPAPO/PDEM123 typically occurs in the context of Advanced Planning and Optimization (APO) when there is an issue related to product supersession during the generation of a planning step. Supersession refers to the process where one product is replaced or phased out in favor of another product. This can lead to complications in planning if not handled correctly.
  
  Cause:
  The error can arise due to several reasons, including:
  
  
  Incorrect Supersession Setup: The supersession relationships between products may not be correctly defined in the system. This can happen if the new product is not properly linked to the old product.
  
  
  Missing Data: Required data for the new product or the supersession relationship may be missing or incomplete.
  
  
  Planning Object Issues: There may be issues with the planning objects involved, such as incorrect master data or configuration settings.
  
  
  Application Log Errors: The application log may contain specific details about the error, which can provide insights