How To Fix /SAPAPO/MCPSH_SEL021 - Error generating a tree control

/SAPAPO/MCPSH_SEL021 - Overview

• Message type: E = Error

• Message class: /SAPAPO/MCPSH_SEL -

• Message number: 021

• Message text: Error generating a tree control

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/MCPSH_SEL021 - Details

• The SAP error message /SAPAPO/MCPSH_SEL021 typically indicates an issue with generating a tree control in the SAP Advanced Planning and Optimization (APO) module. This error can arise due to various reasons, including data inconsistencies, configuration issues, or system performance problems.
  Causes:
  
  Data Inconsistencies: There may be missing or inconsistent data in the master data or transaction data that the tree control is trying to display.
  
  Configuration Issues: Incorrect settings in the APO configuration can lead to problems in generating the tree structure.
  Performance Issues: If the system is under heavy load or if there are performance bottlenecks, it may fail to generate the tree control.
  Authorization Issues: Lack of proper authorizations for the user trying to access the tree control can also lead to this error.
  Technical Issues: Bugs or issues in the SAP system or specific transactions can also cause this error.
  
  Solutions:
  
  
  Check Data Consistency:
  
  Verify that all necessary master data (like materials, locations, etc.) is correctly