How To Fix CNV_DMC_MC010 - Data type '&' does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC - Migration Object Modeler

• Message number: 010

• Message text: Data type '&' does not exist

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC010 - Data type '&' does not exist ?

  The SAP error message CNV_DMC_MC010 with the description "Data type '&' does not exist" typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that the system is trying to reference a data type that is not defined or recognized in the current context.
  Causes:
  
  Missing Data Type: The specified data type may not exist in the target system or the source system from which data is being migrated.
  Incorrect Mapping: There may be an issue with the mapping of fields between the source and target systems, leading to references to non-existent data types.
  Configuration Issues: The configuration settings for the migration process may not be set up correctly, leading to the system not recognizing certain data types.
  Transport Issues: If the data types were supposed to be transported from a development environment to a production environment, there may have been issues during the transport process.
  
  Solutions:
  
  Check Data Type Definitions: Verify that the data type in question is defined in the target system. You can do this by checking the Data Dictionary (SE11) for the relevant data type.
  Review Mapping Configuration: Go through the mapping configuration in the migration cockpit to ensure that all fields are correctly mapped and that the data types correspond to those in the target system.
  Adjust Migration Settings: If there are specific settings related to data types in the migration tool, ensure they are correctly configured.
  Transport Check: If the data type is supposed to be part of a transport request, check the transport logs to ensure that it was successfully transported to the target system.
  Consult Documentation: Refer to SAP documentation or notes related to the Data Migration Cockpit for any specific instructions or known issues regarding data types.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), and ST22 (Dump Analysis) can be useful for troubleshooting.
  SAP Notes: Search for relevant SAP Notes that might address this specific error or provide additional context.
  Migration Cockpit Documentation: Review the official SAP documentation for the Data Migration Cockpit for best practices and troubleshooting tips.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.