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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message IB_DECO125 - Serial number &2 for material &1 is in more than one installed base ?

  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 will help you identify where the duplicates are occurring.
  Correct the Data: 
  
  If the serial number is indeed duplicated, you will need to determine which installed base is correct and remove the serial number from the incorrect installed base.
  You can do this by using the appropriate transaction to delete or modify the installed base record.
  
  
  Review Data Entry Processes: Ensure that your data entry processes are robust to prevent duplicate entries in the future. This may involve training users or implementing validation checks.
  Consult Documentation: Review SAP documentation or consult with your SAP support team for specific steps related to your version of SAP, as the process may vary slightly depending on the configuration and version.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IB01 (Create Installed Base), IB02 (Change Installed Base), and IB03 (Display Installed Base).
  SAP Notes: Check SAP Notes for any known issues or patches related to installed base management and serial number handling.
  User Roles and Authorizations: Ensure that users have the appropriate roles and authorizations to manage installed bases and serial numbers effectively.
  System Configuration: Review the configuration settings in the SAP system related to serial number management to ensure they align with business processes.
  
  By following these steps, you should be able to resolve the error and prevent it from occurring in the future. If the issue persists, consider reaching out to SAP support for further assistance.