How To Fix /SAPAPO/RET_MESSAGES421 - The system displays the class that is linked to the dependency

/SAPAPO/RET_MESSAGES421 - Overview

• Message type: E = Error

• Message class: /SAPAPO/RET_MESSAGES -

• Message number: 421

• Message text: The system displays the class that is linked to the dependency

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/RET_MESSAGES421 - The system displays the class that is linked to the dependency ?

  The SAP error message /SAPAPO/RET_MESSAGES421 typically indicates an issue related to the configuration of the system, particularly in the context of SAP Advanced Planning and Optimization (APO). This error message suggests that the system is unable to display the class linked to a dependency, which can occur in various scenarios, such as when working with product master data, planning objects, or dependencies in the context of planning scenarios.
  Cause
  The error can be caused by several factors, including:
  
  Missing Class Definition: The class that is supposed to be linked to the dependency may not be defined in the system.
  Incorrect Configuration: There may be incorrect or incomplete configuration settings in the APO system related to the dependencies or classes.
  Authorization Issues: The user may not have the necessary authorizations to view the class or dependency.
  Data Inconsistencies: There may be inconsistencies in the master data or planning data that prevent the system from retrieving the class