How To Fix CNV_DMC_SIN529 - Changing of value &1 in field &2 is not allowed

CNV_DMC_SIN529 - Overview

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 529

• Message text: Changing of value &1 in field &2 is not allowed

What causes this issue?

You transferred the value &V1& in field &V2& provided on sheet/staging
table &V3& which has already an existing value &V4& in the related
product master.

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?

It is not allowed to change already existing values in the related
product master: Therefor you can use the Mass Maintenance App. For
further information, refer to online documentation of the Mass
Maintenance App.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_DMC_SIN529 - Details

• The SAP error message CNV_DMC_SIN529, which states "Changing of value &1 in field &2 is not allowed," typically occurs during data migration or transformation processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that there is an attempt to change a value in a field that is not permitted due to business rules, data integrity constraints, or system settings.
  
  Cause:
  
  Data Integrity Constraints: The field you are trying to change may have restrictions based on the business logic or data model. For example, certain fields may be read-only or may only be modified under specific conditions.
  Configuration Settings: The system may have been configured to prevent changes to certain fields to maintain data consistency.
  Migration Rules: During data migration, specific rules may be in place that restrict changes to certain fields to ensure that the migrated data adheres to the target system's requirements.
  Field Status Group: The field