How To Fix CNV_10020764 - &1 &2: No rule was assigned to evaluate &3

CNV_10020764 - Overview

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 764

• Message text: &1 &2: No rule was assigned to evaluate &3

What causes this issue?

There is a rule assignment for a component of the field &V3&. &V3&
itself is defined as a component of a non-transparent field. Therefore
an evaluation rule has to be assigned for &V3& as well. For &V3& no rule
was assigned (release &V4&).

System Response

Evaluation is not possible.

How to fix this error?

Add a rule assignment for &V3&.
&HINTS&

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

To add the assignment use the activity <ZK>Edit Settings for
Non-transparent Fields</>.
If the org. package runs without an interface package, you can add the
assignment using transaction CNV_10020_RCOMP.

Error message extract from SAP system. Copyright SAP SE.

CNV_10020764 - Details

• The SAP error message CNV_10020764 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is no rule assigned to evaluate a specific field or data element during the conversion process.
  
  Cause:
  
  Missing Mapping Rules: The most common cause of this error is that the mapping rules for the specific data element (indicated by &3 in the error message) have not been defined or are missing in the configuration.
  Incorrect Configuration: The configuration settings for the migration or conversion process may not be set up correctly, leading to the system not being able to find the necessary rules.
  Data Structure Changes: If there have been changes in the data structure or if the source system has different data formats, the existing rules may not apply, resulting in this error.
  
  
  Solution:
  
  Check Mapping Rules: Review the mapping rules in the migration cockpit or