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How To Fix C$421 - Symbol &1&2: environment &3 is not defined


SAP Error Message - Details

  • Message type: E = Error

  • Message class: C$ -

  • Message number: 421

  • Message text: Symbol &1&2: environment &3 is not defined

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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.

    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 C$421 - Symbol &1&2: environment &3 is not defined ?

    The SAP error message C$421 indicates that there is an issue with the environment variable that is not defined in the context of the SAP system. This error typically arises in the context of SAP ABAP programs or when working with SAP's transport management system.

    Cause:

    The error message C$421 occurs when:

    1. An environment variable (denoted as &3 in the error message) is referenced in the code or configuration but has not been defined or set in the system.
    2. The program or configuration is trying to access a symbol or variable that is expected to be defined in the environment but is missing.

    Solution:

    To resolve this error, you can take the following steps:

    1. Check Environment Variables:

      • Verify that the environment variable mentioned in the error message (&3) is defined in the system. This can typically be done by checking the system settings or configuration files where environment variables are defined.
    2. Define the Missing Environment Variable:

      • If the environment variable is indeed missing, you will need to define it. This can usually be done in the system configuration or by using transaction codes like RZ10 (for profile parameters) or RZ11 (for dynamic parameters).
    3. Review Code or Configuration:

      • If the error is occurring in a custom ABAP program, review the code to ensure that the variable is being referenced correctly. Make sure that any necessary initialization or definition of the variable is done before it is used.
    4. Check Transport Requests:

      • If this error occurs during a transport operation, ensure that all necessary objects and configurations have been included in the transport request. Sometimes, missing objects can lead to undefined environment variables.
    5. Consult Documentation:

      • Refer to SAP documentation or notes related to the specific environment variable or the context in which the error occurs. There may be specific instructions or known issues that can help resolve the problem.
    6. Contact SAP Support:

      • If you are unable to resolve the issue, consider reaching out to SAP support for assistance. Provide them with the full error message and context to help them diagnose the problem.

    Related Information:

    • SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
    • System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that might provide more context about the issue.
    • ABAP Debugging: If the error occurs in a custom program, use the ABAP debugger to step through the code and identify where the undefined variable is being referenced.

    By following these steps, you should be able to identify and resolve the cause of the C$421 error in your SAP system.

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