How To Fix IB_DECO129 - Equipment &1 is already assigned to an installed base

IB_DECO129 - Overview

• Message type: E = Error

• Message class: IB_DECO - IB: Messages for IBase

• Message number: 129

• Message text: Equipment &1 is already assigned to an installed base

This text is similar to NA IB_DECO137

What causes this issue?

On &V2& at &V3&, equipment &V1& was already assigned to installed base
&V4&.

System Response

The system cannot process the equipment number that was entered.

How to fix this error?

The initial screen does not allow for transfers from another installed
base. Enter the equipment number on the processing screen.

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.

IB_DECO129 - Details

• The SAP error message IB_DECO129 indicates that the equipment you are trying to assign to an installed base is already linked to another installed base. This typically occurs in the context of managing installed bases and equipment in SAP's Customer Service (CS) or Plant Maintenance (PM) modules.
  
  Cause:
  
  Existing Assignment: The equipment is already assigned to a different installed base, which prevents it from being assigned to a new one.
  Data Integrity: SAP enforces data integrity rules to ensure that equipment is not duplicated across multiple installed bases, which could lead to inconsistencies in tracking and reporting.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Current Assignments:
  
  Use transaction codes like IE03 (Display Equipment) to check the current installed base assignment of the equipment.
  Verify if the equipment is indeed assigned to another installed base.
  
  
  
  Unassign from Existing Installed Base:
  
  If the equipment needs to be moved to a new installed base, you may need to