How To Fix 42521 - Class "&1", GUID "&2"

SAP Error Message - Details

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 521

• Message text: Class "&1", GUID "&2"

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 42521 - Class "&1", GUID "&2" ?

  The SAP error message 42521, which states "Class '&1', GUID '&2'", typically relates to issues with the classification system in SAP. This error can occur in various contexts, such as when trying to create or modify a classification object, or when there are issues with the underlying data or configuration.
  Cause:
  
  Missing or Inactive Class: The class specified by the GUID may not exist or may be inactive in the system.
  Authorization Issues: The user may not have the necessary authorizations to access or modify the specified class.
  Data Inconsistencies: There may be inconsistencies in the classification data or the underlying database.
  Technical Issues: There could be technical issues related to the database or the SAP application server.
  
  Solution:
  
  Check Class Existence: Verify that the class with the specified GUID exists in the system. You can do this by using transaction codes like CL02 (Change Class) or CL03 (Display Class).
  Activate Class: If the class exists but is inactive, you may need to activate it.
  Review Authorizations: Ensure that the user has the necessary authorizations to access the class. This can be checked in transaction SU53 (Display Authorization Check) after the error occurs.
  Data Consistency Check: Run consistency checks on the classification data to identify and resolve any inconsistencies.
  Technical Support: If the issue persists, consider reaching out to your SAP Basis team or technical support for further investigation, especially if there are underlying database issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Class), CL02 (Change Class), and CL03 (Display Class) for managing classification.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP documentation related to classification and object management for more context on how classes and GUIDs are used within the system.
  
  If you continue to experience issues after following these steps, it may be beneficial to consult with your SAP support team or refer to the SAP Community for additional insights.