How To Fix CNV_DMC_MC021 - Field name '&' contains an incorrect number of '/' characters

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC - Migration Object Modeler

• Message number: 021

• Message text: Field name '&' contains an incorrect number of '/' characters

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC021 - Field name '&' contains an incorrect number of '/' characters ?

  The SAP error message CNV_DMC_MC021 indicates that there is an issue with the format of a field name in the context of a data migration or conversion process. Specifically, the error states that the field name contains an incorrect number of '/' characters. This typically occurs in scenarios where the field names are expected to follow a specific naming convention, often involving hierarchical structures or specific delimiters.
  Cause:
  
  Incorrect Field Naming Convention: The field name may not adhere to the expected format, which usually requires a certain number of '/' characters to denote hierarchy or structure.
  Data Mapping Issues: During data migration, the mapping of fields from the source to the target system may have been incorrectly defined, leading to invalid field names.
  Configuration Errors: There may be configuration settings in the data migration cockpit or tools that are not set up correctly, causing the system to misinterpret the field names.
  
  Solution:
  
  Check Field Names: Review the field names in your data mapping or conversion settings. Ensure that they conform to the expected format, including the correct number of '/' characters.
  Adjust Mapping: If the field names are being mapped from a source system, verify the mapping configuration to ensure that it correctly reflects the structure of the target system.
  Consult Documentation: Refer to the SAP documentation or guidelines for the specific data migration tool you are using (e.g., SAP S/4HANA Migration Cockpit) to understand the required naming conventions.
  Error Logs: Check the error logs for more detailed information about which specific field is causing the issue. This can help you pinpoint the exact problem.
  Testing: After making adjustments, run a test migration to ensure that the changes resolve the error.
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional guidance on data migration issues.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can offer insights or solutions.
  Data Migration Tools: Familiarize yourself with the specific data migration tools and their requirements, as different tools may have different conventions and limitations.
  
  By following these steps, you should be able to identify and resolve the issue related to the CNV_DMC_MC021 error message.