How To Fix CNV_DMC_WDA127 - Mass transfer ID &1 contains an invalid character

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 127

• Message text: Mass transfer ID &1 contains an invalid character

What causes this issue?

A mass transfer ID can only contain letters (upper and lowercase), and
numbers. Special characters such as <(>&<)>, and $ are not permitted.
Spaces are also not permitted.

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_DMC_WDA127 - Mass transfer ID &1 contains an invalid character ?

  The SAP error message CNV_DMC_WDA127 indicates that a mass transfer ID contains an invalid character. This error typically arises during data migration or data transfer processes, particularly when using the SAP Data Migration Cockpit or similar tools.
  Cause:
  The error is caused by the presence of invalid characters in the mass transfer ID. Mass transfer IDs are often subject to specific formatting rules, which may restrict the use of certain characters (e.g., special characters, spaces, etc.). If the ID includes characters that do not conform to these rules, the system will throw this error.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Invalid Character: Check the mass transfer ID mentioned in the error message. Look for any characters that may not be allowed, such as:
  
  Special characters (e.g., @, #, $, %, &, etc.)
  Spaces
  Non-alphanumeric characters
  
  
  
  Modify the Mass Transfer ID: Change the mass transfer ID to remove or replace the invalid characters. Ensure that the new ID adheres to the allowed character set. Typically, mass transfer IDs should consist of alphanumeric characters (A-Z, 0-9) and possibly underscores (_).
  
  
  Re-run the Process: After correcting the mass transfer ID, re-run the data migration or transfer process to see if the error persists.
  
  
  Check Documentation: Refer to the SAP documentation or guidelines for the specific data migration tool you are using to understand the valid formats for mass transfer IDs.
  
  
  Consult SAP Support: If you continue to experience issues or if the error message does not provide enough information, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  SAP Data Migration Cockpit: This tool is commonly used for data migration in SAP systems. Familiarize yourself with its guidelines and best practices.
  Error Handling: Understanding how to handle errors in SAP data migration processes can help streamline your workflow and reduce downtime.
  Character Restrictions: Different SAP modules may have different restrictions on character usage. Always check the specific requirements for the module you are working with.
  
  By following these steps, you should be able to resolve the CNV_DMC_WDA127 error and successfully proceed with your data migration tasks.