How To Fix IB_DECO125 - Serial number &2 for material &1 is in more than one installed base

IB_DECO125 - Overview

• Message type: E = Error

• Message class: IB_DECO - IB: Messages for IBase

• Message number: 125

• Message text: Serial number &2 for material &1 is in more than one installed base

What causes this issue?

Serial number &V2& for material &V1& exists in more than one installed
base as of &V3& at &V4&.
From the original text, I believe V3 = date and V4 = time

System Response

The system does not continue processing.

How to fix this error?

Use the where-used list to check the assignment of serial number &V1&
with material &V2& for the installed bases.

Error message extract from SAP system. Copyright SAP SE.

IB_DECO125 - Details

• The SAP error message IB_DECO125 indicates that a specific serial number for a material is associated with more than one installed base. This situation typically arises in the context of SAP's Installed Base (IB) management, which is used to track and manage products and their associated serial numbers throughout their lifecycle.
  
  Cause:
  
  Duplicate Serial Numbers: The serial number in question is registered in multiple installed bases, which is not allowed as each serial number should uniquely identify a single instance of a material.
  Data Entry Errors: There may have been errors during data entry or data migration that resulted in the same serial number being assigned to different installed bases.
  System 
  Configuration Issues: Incorrect configuration in the system settings related to serial number management or installed base management could lead to this error.
  
  
  Solution:
  
  Identify the Installed Bases: Use transaction codes like IB01 or IB02 to check the installed bases associated with the serial number. This