How To Fix NGC_CORE_CLS003 - Class type &1: class &2 does not exist or is not valid on &3

SAP Error Message - Details

• Message type: E = Error

• Message class: NGC_CORE_CLS - Message class for class maintenance

• Message number: 003

• Message text: Class type &1: class &2 does not exist or is not valid on &3

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message NGC_CORE_CLS003 - Class type &1: class &2 does not exist or is not valid on &3 ?

  The SAP error message NGC_CORE_CLS003 indicates that there is an issue with a class type that either does not exist or is not valid in the specified context. This error typically arises in the context of SAP's Business Object Processing Framework or when dealing with class-based programming in ABAP.
  Cause:
  
  Non-Existent Class: The class specified in the error message does not exist in the system. This could be due to a typo in the class name or the class not being created or activated.
  Invalid Class: The class may exist but is not valid in the current context. This could happen if the class is not properly defined, is abstract, or has not been implemented correctly.
  Transport Issues: If the class was recently transported from another system, it may not have been transported correctly, leading to inconsistencies.
  Authorization Issues: The user may not have the necessary authorizations to access the class.
  
  Solution:
  
  Check Class Existence: Use transaction code SE24 (Class Builder) to check if the class exists. Ensure that the class name is spelled correctly.
  Activate Class: If the class exists but is not activated, activate it in SE24.
  Review Class Definition: Ensure that the class is properly defined and implemented. Check for any syntax errors or missing components.
  Transport Check: If the class was transported, verify that the transport request was successful and that all dependencies were included.
  Authorization Check: Ensure that the user has the necessary authorizations to access the class. This can be checked in transaction SU53 or by consulting with your security team.
  Debugging: If the issue persists, consider debugging the program or transaction that is triggering the error to identify the exact point of failure.
  
  Related Information:
  
  Transaction Codes: 
  
  SE24: Class Builder
  SE80: Object Navigator
  SU53: Authorization Check
  
  
  Documentation: Refer to SAP Help documentation for more details on class definitions and object-oriented programming in ABAP.
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to this error message.
  
  If the problem continues after following these steps, it may be beneficial to consult with your SAP Basis or development team for further investigation.