How To Fix CNV_MBT_NE104 - Data Loss Warning

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_NE - Standard Messages for Notifications

• Message number: 104

• Message text: Data Loss Warning

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT_NE104 - Data Loss Warning ?

  The SAP error message CNV_MBT_NE104, which indicates a "Data Loss Warning," typically arises during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This warning suggests that some data may not be transferred correctly or completely, which could lead to data integrity issues in the target system.
  Cause:
  The CNV_MBT_NE104 warning can be triggered by several factors, including:
  
  Data Mapping Issues: The source data may not map correctly to the target data structure, leading to potential data loss.
  Incompatible Data Types: Differences in data types between the source and target systems can cause truncation or loss of data.
  Missing Required Fields: If required fields in the target system are not populated from the source data, this can lead to incomplete records.
  Data Transformation Errors: Errors during the transformation of data from the source format to the target format can result in data loss.
  Configuration Issues: Incorrect configuration settings in the migration tool can lead to warnings about data loss.
  
  Solution:
  To address the CNV_MBT_NE104 warning, consider the following steps:
  
  Review the Migration Logs: Check the detailed logs generated during the migration process to identify specific records or fields that are causing the warning.
  Data Mapping Validation: Ensure that the data mapping between the source and target systems is correct. Validate that all necessary fields are included and correctly mapped.
  Data Type Compatibility: Verify that the data types in the source system are compatible with those in the target system. Adjust the data types if necessary to prevent truncation.
  Populate Required Fields: Ensure that all required fields in the target system are populated with valid data from the source system.
  Test Migration: Conduct a test migration with a subset of data to identify potential issues before performing a full migration.
  Consult Documentation: Refer to SAP documentation and best practices for data migration to ensure compliance with recommended procedures.
  Engage SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if the warning could impact critical business processes.
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may provide additional insights or fixes related to the CNV_MBT_NE104 warning.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which may provide guidance on handling data loss warnings.
  Community Forums: Engage with the SAP Community or other forums where users share their experiences and solutions related to data migration issues.
  
  By following these steps, you can mitigate the risk of data loss during the migration process and ensure a smoother transition to the target SAP system.