How To Fix SMT055 - TWUF_CHECK: No entry for mapping &1 step &2 counter &3

SAP Error Message - Details

• Message type: E = Error

• Message class: SMT -

• Message number: 055

• Message text: TWUF_CHECK: No entry for mapping &1 step &2 counter &3

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SMT055 - TWUF_CHECK: No entry for mapping &1 step &2 counter &3 ?

  The SAP error message SMT055, specifically "TWUF_CHECK: No entry for mapping &1 step &2 counter &3," typically occurs in the context of SAP's data transfer processes, particularly when using the SAP Landscape Transformation (SLT) Replication Server or similar tools. This error indicates that there is a missing entry in the mapping table for the specified step and counter, which is essential for the data transformation or replication process.
  Cause:
  
  Missing Mapping Entry: The most common cause of this error is that there is no corresponding entry in the mapping table for the specified parameters (mapping name, step, and counter).
  Configuration Issues: There may be issues with the configuration of the data transfer or replication settings, leading to incomplete or incorrect mapping.
  Data Model Changes: If there have been changes to the data model or the source/target systems, the mapping may not have been updated accordingly.
  Transport Issues: If the mapping was transported from one system to another, it may not have been transported correctly, leading to missing entries.
  
  Solution:
  
  Check Mapping Configuration: Verify the mapping configuration in the SLT or relevant data transfer tool. Ensure that the mapping for the specified parameters exists and is correctly defined.
  Recreate Missing Entries: If the mapping entry is indeed missing, you may need to recreate it. This can involve defining the mapping again in the relevant transaction or configuration screen.
  Review Transport Logs: If the mapping was recently transported, check the transport logs for any errors or warnings that might indicate why the mapping was not created correctly.
  Update Data Model: If there have been changes to the data model, ensure that the mapping is updated to reflect these changes.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of the SLT or data transfer tool you are using for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like LTMC, SLT, or others relevant to your specific SAP environment to access mapping configurations.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support for further assistance, providing them with the error details and any relevant logs.
  
  By following these steps, you should be able to identify and resolve the cause of the SMT055 error in your SAP environment.