How To Fix CNV_DMC_MC_EXCEPTION014 - New row needed for access type READ TABLE or mapping type 'Aggregation'

CNV_DMC_MC_EXCEPTION014 - Overview

• Message type: E = Error

• Message class: CNV_DMC_MC_EXCEPTION - Exception texts of Migration Object Modeller

• Message number: 014

• Message text: New row needed for access type READ TABLE or mapping type 'Aggregation'

What causes this issue?

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

System Response

How to fix this error?

In order to use the access type ?READ TABLE? or the mapping type
?Aggregation?, add a row that has the access type ?LOOP AT TABLE? or
?Mapping Only? and the mapping type ?1:1 Relation? or ?Split?.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_DMC_MC_EXCEPTION014 - Details

• The SAP error message CNV_DMC_MC_EXCEPTION014 typically occurs during data migration processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that there is an issue with the data mapping or the way data is being accessed during the migration process.
  
  Cause:
  
  
  Missing Mapping Configuration: The error often arises when there is no appropriate mapping defined for the data being processed. This can happen if the source data does not match the expected structure or if the mapping rules are incomplete.
  
  
  Access Type Issues: The error message specifically mentions "access type READ TABLE," which suggests that the system is trying to read data from a table but cannot find the necessary configuration or data to do so.
  
  
  Aggregation Issues: If the mapping type is set to 'Aggregation', it may indicate that the system is expecting to aggregate data from multiple rows but cannot find the necessary rows to perform