How To Fix CNV_MBT_09_A406 - Error while modifying table &

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_09_A - Message class for drop-solution

• Message number: 406

• Message text: Error while modifying table &

What causes this issue?

Error occured while updating Substate Table

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT_09_A406 - Error while modifying table & ?

  The SAP error message CNV_MBT_09_A406 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an issue with modifying a specific table, which is often related to data integrity, constraints, or the state of the table being modified.
  Cause:
  
  Data Integrity Issues: The data being migrated may violate integrity constraints (e.g., foreign key constraints, unique constraints) defined on the target table.
  Locked Tables: The table you are trying to modify may be locked by another process or user, preventing changes.
  Incorrect Data Format: The data being inserted or updated may not conform to the expected format or data type of the target table.
  Missing Required Fields: Required fields in the target table may not be populated in the data being migrated.
  Configuration Issues: There may be configuration issues in the migration settings or mapping that lead to this error.
  
  Solution:
  
  Check Data Integrity: Review the data being migrated to ensure it adheres to all integrity constraints. This may involve checking for duplicates, ensuring foreign key relationships are valid, and confirming that all required fields are populated.
  Unlock Tables: If the table is locked, identify the process or user that is holding the lock and resolve it. You can use transaction codes like SM12 to check for locks.
  Validate Data Format: Ensure that the data types and formats in the source data match those expected in the target table. This may involve data cleansing or transformation.
  Review Migration Settings: Check the migration settings and mapping configurations to ensure they are correctly set up for the data being processed.
  Consult Logs: Look at the detailed logs generated during the migration process for more specific information about what caused the error. This can provide insights into which records or fields are problematic.
  Test with Sample Data: If possible, test the migration with a smaller subset of data to isolate the issue and identify specific records that may be causing the error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE37 (Function Modules), and SM37 (Job Monitoring) to help diagnose and resolve issues.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the migration tool you are using, as it may contain specific guidelines or best practices for handling errors.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific environment and data.