How To Fix C$290 - There is no class with key &

C$290 - Overview

• Message type: E = Error

• Message class: C$ -

• Message number: 290

• Message text: There is no class with key &

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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C$290 - Details

• The SAP error message C$290 ("There is no class with key &") typically indicates that the system is unable to find a class in the classification system that corresponds to the key provided. This can occur in various contexts, such as when working with material master data, equipment, or other objects that utilize classification.
  Causes:
  
  Incorrect Class Key: The key provided may be incorrect or misspelled.
  Class Not Created: The class may not have been created in the system.
  Authorization Issues: The user may not have the necessary authorizations to view or access the class.
  Data Deletion: The class may have been deleted or is no longer active in the system.
  
  Configuration Issues: There may be issues with the configuration of the classification system.
  
  Solutions:
  
  Verify Class Key: Check the class key you are using for any typos or errors. Ensure that it is the correct key for the class you are trying to access.
  Check Class Existence: Use