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How To Fix SPRX401 - SPROXY/DDIC: Structure &1 Number of fields are different &2/&3


SAP Error Message - Details

  • Message type: E = Error

  • Message class: SPRX - Proxy Generation

  • Message number: 401

  • Message text: SPROXY/DDIC: Structure &1 Number of fields are different &2/&3

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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.



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    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 SPRX401 - SPROXY/DDIC: Structure &1 Number of fields are different &2/&3 ?

    The SAP error message SPRX401 indicates a mismatch in the number of fields between two structures in the context of SAP Proxy (SPROXY) and Data Dictionary (DDIC). This error typically arises when there is an inconsistency between the expected structure of a message and the actual structure defined in the system.

    Cause:

    The error occurs when:

    • There is a difference in the number of fields between the expected structure (as defined in the proxy) and the actual structure (as defined in the Data Dictionary).
    • Changes have been made to the structure in the Data Dictionary (e.g., adding or removing fields) without updating the corresponding proxy definitions.
    • The proxy service is not in sync with the underlying data structures.

    Solution:

    To resolve the SPRX401 error, you can follow these steps:

    1. Check the Structures:

      • Identify the structure mentioned in the error message (denoted as &1).
      • Compare the number of fields in the structure defined in the Data Dictionary with the number of fields expected by the proxy.
    2. Update the Proxy:

      • If the Data Dictionary structure has changed, you may need to regenerate the proxy to ensure it reflects the current structure.
      • In the SAP GUI, navigate to the transaction code SPROXY and check the relevant proxy service.
      • Regenerate the proxy by selecting the appropriate options to update the service definition.
    3. Adjust the Data Dictionary:

      • If the proxy is correct and the Data Dictionary structure is outdated, consider modifying the Data Dictionary structure to match the expected fields.
      • Ensure that any changes made to the Data Dictionary are necessary and do not disrupt other functionalities.
    4. Check for Dependencies:

      • Review any dependent objects or services that might be affected by the changes in the structure.
      • Ensure that all related proxies and services are updated accordingly.
    5. Testing:

      • After making the necessary adjustments, test the proxy service to ensure that the error is resolved and that the service functions as expected.

    Related Information:

    • Transaction Codes: Use SPROXY to manage proxy services and SE11 to view and edit Data Dictionary objects.
    • Documentation: Refer to SAP Help documentation for detailed information on proxy services and Data Dictionary management.
    • Transport Requests: If changes are made in a development environment, ensure that they are transported to the quality and production environments as needed.

    By following these steps, you should be able to resolve the SPRX401 error and ensure that your SAP Proxy and Data Dictionary structures are in sync.

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