How To Fix CNV_MBT_46012 - Update column failure

CNV_MBT_46012 - Overview

• Message type: E = Error

• Message class: CNV_MBT_46 - PCL message class

• Message number: 012

• Message text: Update column failure

Self-Explanatory Message

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CNV_MBT_46012 - Details

• The SAP error message CNV_MBT_46012 typically occurs during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there was a failure in updating a specific column in the database during the migration process.
  
  Cause:
  The error can be caused by several factors, including:
  
  Data Type Mismatch: The data being migrated may not match the expected data type of the target column in the database.
  Null Values: Attempting to insert or update a column with a null value when the column is defined as NOT NULL.
  Foreign Key Violations: The data being migrated may violate foreign key constraints in the target database.
  Length Exceedance: The data length exceeds the maximum length defined for the target column.
  Database Locking Issues: The target table may be locked by another process, preventing updates.
  Incorrect Mapping: The mapping of source fields to target fields may be incorrect, leading to invalid data being