How To Fix COM_ALTER_IDENT000 - ID type &1 is unique and ID &2 is already being used in product &3

COM_ALTER_IDENT000 - Overview

• Message type: E = Error

• Message class: COM_ALTER_IDENT - Messages for Alternative Identifiers

• Message number: 000

• Message text: ID type &1 is unique and ID &2 is already being used in product &3

What causes this issue?

When defining an alternative ID type, you can specify whether it is a
unique identifier. When unique identifiers are used, there must not be
more than one object (for example, products or individual objects) with
the same ID.
The object cannot be saved as the object ID specified is already being
used.

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?

Change the ID value or set the alternative ID type to not unique.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

COM_ALTER_IDENT000 - Details

• The SAP error message COM_ALTER_IDENT000 indicates that there is an issue with the uniqueness of an identifier (ID) in the context of a product. Specifically, the message states that the ID type specified (represented by &1) is supposed to be unique, but the ID (&2) you are trying to use is already in use in the product (&3). 
  
  Cause:
  
  
  Duplicate Identifier: The primary cause of this error is that you are attempting to create or modify an identifier that already exists in the system for the specified product. This could happen if:
  
  You are trying to assign an ID that has already been assigned to another product or entity.
  There is a data entry error where the same ID was mistakenly entered multiple times.
  
  
  
  Data Migration Issues: If you are migrating data from another system or have recently imported data, there may be conflicts with existing IDs.
  
  
  Configuration Errors: Sometimes, configuration settings may not enforce