How To Fix RMSRCPMIG066 - Characteristic &1 cannot be assigned uniquely to a column

SAP Error Message - Details

• Message type: E = Error

• Message class: RMSRCPMIG -

• Message number: 066

• Message text: Characteristic &1 cannot be assigned uniquely to a column

What causes this issue?

The characteristic &V1& of class &V2& and class type &V3& cannot be
assigned uniquely to a column to display the process parameter data.

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?

Check whether the restrictions are fulfilled that applied for process
parameters before migration (see SAP Note 776572).

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 RMSRCPMIG066 - Characteristic &1 cannot be assigned uniquely to a column ?

  The SAP error message RMSRCPMIG066 indicates that there is an issue with the assignment of characteristics to columns in the context of a migration or data model configuration. This error typically arises when a characteristic is not uniquely assigned to a column, which can lead to ambiguity in data representation.
  Cause:
  
  Non-Unique Assignment: The characteristic specified in the error message (&1) is being assigned to multiple columns, which violates the requirement for unique assignments.
  Data Model Configuration: The data model or structure may not be correctly defined, leading to overlapping assignments of characteristics.
  Migration Issues: If this error occurs during a migration process, it may be due to inconsistencies in the source data or configuration that do not align with the target structure.
  
  Solution:
  
  Review Assignments: Check the configuration of the data model to ensure that each characteristic is assigned to only one column. You can do this by navigating to the relevant configuration settings in the SAP system.
  Modify Data Model: If a characteristic needs to be assigned to multiple columns for valid reasons, consider redesigning the data model to accommodate this requirement without causing ambiguity.
  Data Cleansing: If the error arises during data migration, ensure that the source data is cleansed and structured correctly before migration. This may involve removing duplicates or restructuring the data.
  Consult Documentation: Refer to SAP documentation or guides related to the specific module you are working with (e.g., SAP BW, SAP HANA) for best practices on characteristic assignments.
  Testing: After making changes, conduct thorough testing to ensure that the error is resolved and that the data model functions as expected.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP Support for assistance. They can provide more detailed guidance based on your specific system configuration and version.
  
  By following these steps, you should be able to identify the root cause of the RMSRCPMIG066 error and implement a solution to resolve it.