How To Fix CNV_00001109 - Custom aggregate routine not defined for field &2 of table &1

CNV_00001109 - Overview

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 109

• Message text: Custom aggregate routine not defined for field &2 of table &1

What causes this issue?

Custom aggregate routine was not defined for field &V2& of table &V1&
although this field was chosen to be aggregated with custom aggregate
routine.

System Response

The conversion program for table &V1& will not be generated correctly.

How to fix this error?

Please provide the custom aggregate routine for field &V2& of table
&V1&, choose one of predefined aggregation functions or remove the
field from the list of fields to be aggregated.

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.

CNV_00001109 - Details

• The SAP error message CNV_00001109 indicates that a custom aggregate routine has not been defined for a specific field in a specified table. This error typically arises during data migration or conversion processes, particularly when using the SAP Data Migration tools or during the execution of a conversion program.
  
  Cause:
  
  Missing Custom Aggregate Routine: The primary cause of this error is that the system expects a custom aggregate routine for the specified field in the specified table, but it has not been defined.
  
  Configuration Issues: There may be configuration issues in the data migration settings or the mapping of fields that require aggregation.
  Incorrect Table or Field Reference: The error may also occur if the table or field referenced in the error message is incorrect or does not exist in the current context.
  
  
  Solution:
  
  
  Define the Custom Aggregate Routine:
  
  You need to create a custom aggregate routine for the specified field in the specified table. This can