How To Fix IB_DECO131 - Equipment &1 is already assigned to this installed base

IB_DECO131 - Overview

• Message type: E = Error

• Message class: IB_DECO - IB: Messages for IBase

• Message number: 131

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

This text is exactly the same as NA IB_DECO134

What causes this issue?

Changing an assignment by overwriting it is not allowed within an
installed base.

System Response

The entries are canceled.

How to fix this error?

To change assignments within an installed base, use the cut and insert
functions.

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_DECO131 - Details

• The SAP error message IB_DECO131 indicates that the equipment you are trying to assign to an installed base is already associated with another installed base. This typically occurs in the context of SAP's Installed Base (IB) functionality, which is used to manage the lifecycle of equipment and its relationship with customers.
  
  Cause:
  
  Existing Assignment: The equipment (identified by &1) is already linked to a different installed base. In SAP, each piece of equipment can only be assigned to one installed base at a time.
  Data Entry Error: There may have been an error in data entry, leading to an attempt to assign the same equipment to multiple installed bases.
  System Configuration: The system may be configured in a way that restricts the assignment of equipment to multiple installed bases.
  
  
  Solution:
  
  
  Check Current Assignments: 
  
  Use transaction codes like IE03 (Display Equipment) to check the current installed base assignment of the equipment. 
  Verify which installed base the equipment