How To Fix CNV_MBT_SHELL021 - String "negdat" or "negtab" or "negind" not found

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_SHELL - Shell Creation

• Message number: 021

• Message text: String "negdat" or "negtab" or "negind" not found

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT_SHELL021 - String "negdat" or "negtab" or "negind" not found ?

  The SAP error message CNV_MBT_SHELL021 indicates that the system is unable to find specific strings or identifiers, namely "negdat," "negtab," or "negind." This error typically arises in the context of data migration or conversion processes, particularly when using the SAP Migration Workbench or similar tools.
  Cause:
  
  Missing Configuration: The error may occur if the necessary configuration or data structures (like tables or fields) are not set up correctly in the system.
  Incorrect Mapping: If the mapping of data fields is incorrect or if the required fields are not defined in the migration project, this error can occur.
  Data Model Changes: Changes in the data model or structure in the source or target system that are not reflected in the migration settings can lead to this error.
  Transport Issues: If the necessary transport requests containing the required objects have not been imported into the system, this can also lead to missing identifiers.
  
  Solution:
  
  Check Configuration: Verify that the necessary configurations for the migration project are in place. Ensure that the relevant tables and fields are defined correctly.
  Review Mapping: Go through the mapping settings in the migration tool to ensure that all required fields are correctly mapped and that there are no missing entries.
  Data Model Verification: Confirm that the data model in both the source and target systems is consistent and that any changes have been accounted for in the migration settings.
  Transport Requests: Ensure that all relevant transport requests have been successfully imported into the system. If any are missing, import them and check if the error persists.
  Consult Documentation: Refer to the SAP documentation or notes related to the specific migration tool you are using for any additional troubleshooting steps or known issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message. SAP frequently updates its knowledge base with solutions for common problems.
  Migration Workbench Documentation: Review the official SAP documentation for the Migration Workbench or the specific tool you are using to understand the requirements and configurations needed for successful data migration.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared by other users.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.