How To Fix /SAPAPO/APP_FLAG_RES021 - Internal Error: Dependency check preprocessing not executed

/SAPAPO/APP_FLAG_RES021 - Overview

• Message type: E = Error

• Message class: /SAPAPO/APP_FLAG_RES -

• Message number: 021

• Message text: Internal Error: Dependency check preprocessing not executed

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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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/APP_FLAG_RES021 - Internal Error: Dependency check preprocessing not executed ?

  The SAP error message /SAPAPO/APP_FLAG_RES021 Internal Error: Dependency check preprocessing not executed typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the dependency check process during planning runs. This error can be caused by various factors, including configuration issues, data inconsistencies, or system performance problems.
  Causes:
  
  
  Configuration Issues: Incorrect settings in the APO system, particularly in the planning area or the planning book, can lead to this error.
  Data Inconsistencies: Missing or inconsistent master data (like product master, location master, etc.) can cause the dependency check to fail.
  Performance Issues: If the system is under heavy load or if there are performance bottlenecks, the preprocessing step may not execute properly.
  Transport Issues: If there have been recent transports that affect the APO configuration or data, it may lead to inconsistencies.
  Version Issues: Sometimes, the error can be related to specific versions of SAP APO or the underlying