How To Fix IUUC_MAIN111 - Mismatch error occured during import of key data

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_MAIN - IUUC: Main Message class

• Message number: 111

• Message text: Mismatch error occured during import of key data

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IUUC_MAIN111 - Mismatch error occured during import of key data ?

  The SAP error message IUUC_MAIN111 indicates a mismatch error that occurs during the import of key data in the context of SAP Landscape Transformation (SLT) or SAP Data Services. This error typically arises when there is a discrepancy between the source and target systems regarding the data being replicated or transformed.
  Causes of IUUC_MAIN111 Error
  
  
  Data Mismatch: The most common cause is a mismatch in the key fields between the source and target tables. This can happen if the data in the source system has changed after the initial configuration or if there are inconsistencies in the data model.
  
  
  Configuration Issues: Incorrect configuration settings in the SLT or Data Services setup can lead to this error. This includes issues with the mapping of fields or incorrect data types.
  
  
  Data Type Differences: If the data types of the key fields in the source and target systems do not match, it can lead to import errors.
  
  
  Missing Data: If the key data that is being imported does not exist in the target system, this can trigger the mismatch error.
  
  
  Replication Issues: Problems during the data replication process, such as network issues or interruptions, can also lead to this error.
  
  
  Solutions to IUUC_MAIN111 Error
  
  
  Check Data Consistency: Verify that the key data in the source and target systems is consistent. Ensure that the records exist in both systems and that the key fields match.
  
  
  Review Configuration: Go through the SLT or Data Services configuration to ensure that all mappings and settings are correct. Pay special attention to the data types and field mappings.
  
  
  Data Type Alignment: Ensure that the data types of the key fields in both the source and target systems are compatible. If necessary, adjust the data types in the target system to match those in the source.
  
  
  Reinitialize Replication: If the issue persists, consider reinitializing the replication process. This involves stopping the replication, clearing the existing data in the target, and starting the replication again.
  
  
  Check Logs: Review the SLT or Data Services logs for more detailed error messages that can provide insights into the specific cause of the mismatch.
  
  
  Consult Documentation: Refer to SAP documentation or support notes related to SLT or Data Services for additional troubleshooting steps and best practices.
  
  
  Related Information
  
  
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to IUUC_MAIN111. SAP frequently updates its knowledge base with solutions to common problems.
  
  
  SLT Documentation: Review the official SAP documentation for Landscape Transformation to understand the configuration and operational guidelines.
  
  
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  
  
  By following these steps, you should be able to identify and resolve the IUUC_MAIN111 mismatch error during the import of key data in SAP.