How To Fix CNV_CMIS_M212 - More than one mapping entry cannot be created for routine with &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CMIS_M - Message class for CMIS Migration

• Message number: 212

• Message text: More than one mapping entry cannot be created for routine with &1

What causes this issue?

You cannot create more lines because an entry already exists. In the
case of domains of LOGSYS and MANDT, more than one entry is not allowed.

System Response

The system does not create a new line.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CMIS_M212 - More than one mapping entry cannot be created for routine with &1 ?

  The SAP error message CNV_CMIS_M212 indicates that there is an issue with the mapping entries in a conversion routine. Specifically, it states that more than one mapping entry cannot be created for a routine identified by &1. This typically occurs during data migration or conversion processes, particularly when using the SAP Conversion Management (CM) tools.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Duplicate Mapping Entries: There are multiple entries in the mapping table for the same routine, which is not allowed.
  Incorrect Configuration: The configuration of the mapping routine may not be set up correctly, leading to conflicts.
  Data Integrity Issues: The source data may have inconsistencies that result in multiple mappings being created for the same target.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Mapping Entries:
  
  Review the mapping entries for the routine specified by &1. Ensure that there are no duplicate entries for the same source and target combination.
  If duplicates are found, remove or consolidate them to ensure that each source maps to a unique target.
  
  
  
  Review Configuration:
  
  Verify the configuration settings for the mapping routine. Ensure that it is set up correctly and that there are no conflicting settings that could lead to multiple mappings.
  
  
  
  Data Validation:
  
  Validate the source data to ensure that it does not contain duplicates or inconsistencies that could lead to multiple mappings. Clean the data as necessary.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for the specific conversion routine you are using. There may be specific guidelines or limitations regarding mapping entries.
  
  
  
  Testing:
  
  After making the necessary changes, test the mapping process again to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling mapping entries.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., LTMC, LTMOM) that are used for data migration and mapping in SAP.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.