How To Fix CNV_MBT_SHELL121 - Check data dictionary of sender system against .STR file definition

CNV_MBT_SHELL121 - Overview

• Message type: E = Error

• Message class: CNV_MBT_SHELL - Shell Creation

• Message number: 121

• Message text: Check data dictionary of sender system against .STR file definition

Self-Explanatory Message

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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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CNV_MBT_SHELL121 - Details

• The SAP error message CNV_MBT_SHELL121 typically occurs during data migration processes, particularly when using the SAP Migration Cockpit or similar tools. This error indicates that there is a mismatch between the data dictionary of the sender system and the structure definition (.STR file) that is being used for the migration.
  
  Cause:
  
  
  Data Dictionary Mismatch: The fields in the data dictionary of the sender system do not match the definitions specified in the .STR file. This could be due to:
  
  Changes in the data model of the sender system.
  Incorrect or outdated .STR file being used.
  Missing fields or incorrect data types in the sender system.
  
  
  
  
  Configuration Issues: The migration configuration may not be set up correctly, leading to discrepancies between the expected and actual data structures.
  
  
  Version Differences: If the sender system is on a different version of SAP than what the migration tool expects, there may be differences in the data structures.
  
  
  
  Solution:
  
  
  Check the .STR File: 
  
  Review