How To Fix CNV_PE521 - Scenario-dependent Customizing is already present for &1

CNV_PE521 - Overview

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 521

• Message text: Scenario-dependent Customizing is already present for &1

What causes this issue?

Structural parameter &V1& cannot be linked to any other parameter
because knowledge base already contains scenario-dependent Customizing
(at least on the structural level) for it.

System Response

Own scenario-dependent knowledge base Customizing is not allowed for
linked parameters. The Customizing of the assigned data parameters is
applied to them.

How to fix this error?

Delete scenario-dependent Customizing for parameter &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.

CNV_PE521 - Details

• The SAP error message CNV_PE521 indicates that there is already existing scenario-dependent customizing for the specified object (denoted by &1). This typically occurs during data migration or system conversion processes, particularly when using SAP's Conversion Tools or Migration Cockpit.
  
  Cause:
  The error arises when you attempt to create or modify customizing settings for a scenario that already has existing configurations. This can happen in various contexts, such as:
  
  When you are trying to import or apply a new customizing setting that conflicts with an existing one.
  When there are multiple migration scenarios or projects that have overlapping configurations.
  
  
  Solution:
  To resolve the CNV_PE521 error, you can follow these steps:
  
  
  Check Existing Customizing:
  
  Review the existing customizing settings for the specified object. You can do this by navigating to the relevant customizing transaction or using transaction codes like SPRO.
  Identify the conflicting settings that are causing the error.
  
  
  
  Modify or Delete Conflicting Settings:
  
  If the existing customizing is no longer needed, consider