How To Fix NRSCNV399 - Compoundings of characteristic &1 and mapping characteristic &2 not equal

SAP Error Message - Details

• Message type: E = Error

• Message class: NRSCNV - Message class

• Message number: 399

• Message text: Compoundings of characteristic &1 and mapping characteristic &2 not equal

What causes this issue?

You are trying to add characteristic &V1& to InfoProvider &V3& by
filling it with values from characteristic &V2& which is already present
in InfoProvider &V3&. As at least one of the two characteristics &V1&
and &V2& is compounded to an InfoObject which is not part of the list of
compounding InfoObjects of the other characteristic<(>,<)> you cannot
use characteristic &V2& to fill the newly added characteristic &V1& with
values.

System Response

The required action cannot be performed.

How to fix this error?

Either sure that the list of compoundings is the same for characteristic
&V1& and &V2&<(>,<)> or choose another characteristic which has the same
list of compoundings as characteristic &V2& and add this instead of
characteristic &V1&.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NRSCNV399 - Compoundings of characteristic &1 and mapping characteristic &2 not equal ?

  The SAP error message NRSCNV399 indicates that there is a mismatch between the compoundings of two characteristics during a data conversion or migration process. Specifically, it suggests that the compoundings of the characteristic specified as &1 do not match the compoundings of the mapping characteristic specified as &2. This can occur in scenarios such as data migration, where characteristics are being transformed or mapped from one format to another.
  Cause:
  
  Mismatch in Characteristics: The compoundings of the two characteristics are not aligned. This could be due to differences in the way the characteristics are defined in the source and target systems.
  Data Inconsistencies: There may be inconsistencies in the data itself, such as missing values or incorrect mappings.
  Configuration Issues: The configuration settings for the characteristics in the SAP system may not be set up correctly, leading to discrepancies in how they are interpreted.
  
  Solution:
  
  Check Characteristic Definitions: Review the definitions of both characteristics in the SAP system. Ensure that they are configured correctly and that their compoundings are aligned.
  Validate Data: Examine the data being migrated or converted. Look for any inconsistencies or errors in the values associated with the characteristics. Correct any discrepancies found.
  Adjust Mapping: If the mapping between the two characteristics is incorrect, adjust the mapping to ensure that it reflects the correct relationships and compoundings.
  Use Transaction Codes: Utilize relevant transaction codes (like RSA1 for Data Warehousing or other relevant ones) to analyze and correct the data model and mappings.
  Consult Documentation: Refer to SAP documentation or notes related to the specific characteristics and their compoundings for additional guidance.
  Testing: After making changes, perform tests to ensure that the error does not reoccur and that the data is being processed correctly.
  
  Related Information:
  
  SAP Notes: Check for any SAP Notes related to NRSCNV399 for specific patches or updates that may address this issue.
  Data Migration Tools: If you are using specific data migration tools (like SAP Data Services or LSMW), consult their documentation for best practices on handling characteristic mappings.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the NRSCNV399 error and implement a solution to resolve it.