How To Fix CNV_MBT_DEX121 - Exception occurred in FM &, sy-subrc = &.Control file data import failed.

CNV_MBT_DEX121 - Overview

• Message type: E = Error

• Message class: CNV_MBT_DEX - DMIS Data Extract related messages

• Message number: 121

• Message text: Exception occurred in FM &, sy-subrc = &.Control file data import failed.

Self-Explanatory Message

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CNV_MBT_DEX121 - Details

• The SAP error message CNV_MBT_DEX121 indicates that there was an exception during the execution of a function module (FM) related to the data import process in a conversion or migration project, typically associated with the SAP Landscape Transformation (SLT) or data migration tools.
  
  Cause:
  The error can occur due to several reasons, including but not limited to:
  
  Data Format Issues: The control file being imported may have incorrect formatting or invalid data that does not conform to the expected structure.
  Missing or Incorrect Configuration: There may be missing configuration settings or incorrect parameters in the migration project.
  Authorization Issues: The user executing the import may not have the necessary authorizations to perform the operation.
  Function Module Errors: The function module being called may have internal errors or may not be implemented correctly.
  Database Constraints: There may be constraints in the database that prevent the import of certain records (e.g., primary key violations, foreign key constraints).
  
  
  Solution:
  To resolve the