How To Fix /SAPDMC/LSMW_OBJ_020027 - Specify a field name.


SAP Error Message - Details

  • Message type: E = Error

  • Message class: /SAPDMC/LSMW_OBJ_020 -

  • Message number: 027

  • Message text: Specify a field name.

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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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Smart SAP Assistant

  • What is the cause and solution for SAP error message /SAPDMC/LSMW_OBJ_020027 - Specify a field name. ?

    The SAP error message /SAPDMC/LSMW_OBJ_020027 Specify a field name typically occurs in the context of using the Legacy System Migration Workbench (LSMW) in SAP. This error indicates that a required field name has not been specified in the LSMW project or object configuration.

    Cause:

    1. Missing Field Name: The error is primarily caused by not specifying a field name in the mapping or data structure definition within the LSMW project.
    2. Incorrect Configuration: There may be an issue with the configuration of the LSMW object, such as missing or incorrectly defined source structures or field mappings.
    3. Data Source Issues: If the data source does not have the expected fields or if there is a mismatch between the source and target structures, this error can occur.

    Solution:

    1. Check Field Mapping:

      • Go to the LSMW project and check the field mapping for the object you are working on.
      • Ensure that all required fields are specified and correctly mapped.
    2. Define Source Structure:

      • Make sure that the source structure is defined correctly and that all necessary fields are included.
      • If you are using a flat file, ensure that the file contains all the required fields.
    3. Review Object Configuration:

      • Review the configuration of the LSMW object to ensure that all necessary settings are in place.
      • Check the "Field Mapping and Conversion Rules" section to ensure that all fields are correctly defined.
    4. Test with Sample Data:

      • If possible, test the LSMW process with a small sample of data to identify if the issue persists.
      • This can help isolate whether the problem is with the data or the configuration.
    5. Consult Documentation:

      • Refer to SAP documentation or help resources for LSMW to ensure that you are following the correct procedures for your specific scenario.
    6. Check for Updates:

      • Ensure that your SAP system is up to date with the latest patches and updates, as sometimes bugs can be resolved in newer versions.

    Related Information:

    • LSMW Overview: LSMW is a tool in SAP used for data migration from legacy systems to SAP systems. It allows users to map fields from the source data to the target SAP fields.
    • Field Mapping: Proper field mapping is crucial for successful data migration. Each field in the source data must correspond to a field in the target SAP structure.
    • Error Handling: Familiarize yourself with common LSMW error messages and their resolutions to streamline the data migration process.

    If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.

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