How To Fix C$744 - Generation source & is not a class of class type &


SAP Error Message - Details

  • Message type: E = Error

  • Message class: C$ -

  • Message number: 744

  • Message text: Generation source & is not a class of class type &

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  • 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.

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Smart SAP Assistant

  • What is the cause and solution for SAP error message C$744 - Generation source & is not a class of class type & ?

    The SAP error message C$744 typically indicates an issue related to the generation of a source code or a class in the ABAP environment. This error can occur when the system is unable to recognize a specified source or class type, which can be due to various reasons. Here’s a breakdown of the potential causes, solutions, and related information:

    Causes:

    1. Incorrect Class Type: The specified class or interface may not be defined correctly or may not exist in the system.
    2. Syntax Errors: There may be syntax errors in the ABAP code that prevent the system from recognizing the class.
    3. Missing Dependencies: The class or interface may depend on other classes or interfaces that are missing or not activated.
    4. Transport Issues: If the class was transported from another system, there may have been issues during the transport process.
    5. Authorization Issues: The user may not have the necessary authorizations to access or generate the specified class.

    Solutions:

    1. Check Class Definition: Verify that the class or interface is correctly defined in the system. Use transaction SE24 (Class Builder) to check the existence and definition of the class.
    2. Review Syntax: Check the ABAP code for any syntax errors. Use transaction SE38 or SE80 to edit and check the code.
    3. Activate Classes: Ensure that all dependent classes and interfaces are activated. You can activate them in the Class Builder (SE24).
    4. Transport Logs: If the class was transported, check the transport logs for any errors or warnings that may indicate issues during the transport.
    5. Authorization Check: Ensure that the user has the necessary authorizations to access and generate the class. This can be checked in transaction SU53 or by consulting with your security team.
    6. Recompile: Sometimes, recompiling the class or related objects can resolve the issue. You can do this in the Class Builder.

    Related Information:

    • Transaction Codes:
      • SE24: Class Builder
      • SE80: Object Navigator
      • SE38: ABAP Editor
      • SU53: Authorization Check
    • Documentation: Refer to SAP Help Portal for documentation on ABAP programming and class definitions.
    • SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.

    If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or ABAP development team for further investigation.

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