How To Fix IO120 - Assembly & is already included in the object list

IO120 - Overview

• Message type: E = Error

• Message class: IO - Plant Maintenance: Object List

• Message number: 120

• Message text: Assembly & is already included in the object list

What causes this issue?

You have tried to enter an <DS:GLOS.assembly>assembly</> in the
<DS:GLOS.object_list>object list</> which is already contained in the
object list.

System Response

INCLUDE KEINE-FUNKTION OBJECT DOKU ID TX LANGUAGE EN

How to fix this error?

Delete the entry from the object list.

Error message extract from SAP system. Copyright SAP SE.

IO120 - Details

• The SAP error message IO120 typically indicates that an assembly or component is already included in the object list for a particular operation or transaction. This error can occur in various contexts, such as during the creation or modification of production orders, bill of materials (BOM), or other related processes.
  
  Cause:
  
  Duplicate Entry: The assembly or component you are trying to add is already present in the list, leading to a conflict.
  Incorrect Data Entry: There may be a mistake in the data entry where the same assembly is being referenced multiple times.
  System Configuration: There might be a configuration issue in the system that is causing the assembly to be recognized as already included.
  
  
  Solution:
  
  Check Object List: Review the object list to confirm if the assembly is indeed already included. If it is, you may not need to add it again.
  Remove Duplicate: If you find that the assembly is duplicated, remove the duplicate entry