How To Fix IO103 - Equipment &1 assembly &2 is already in the object list

SAP Error Message - Details

• Message type: E = Error

• Message class: IO - Plant Maintenance: Object List

• Message number: 103

• Message text: Equipment &1 assembly &2 is already in the object list

What causes this issue?

You have entered a piece of equipment and an assembly that is already
in the object list.

System Response

The piece of equipment can only appear in the object list once with
this assembly.

How to fix this error?

Correct your entry.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message IO103 - Equipment &1 assembly &2 is already in the object list ?

  The SAP error message IO103, which states "Equipment &1 assembly &2 is already in the object list," typically occurs in the context of maintenance or production planning when you are trying to add an equipment or assembly that is already included in the current object list. This can happen in various transactions related to maintenance orders, production orders, or other object lists where equipment or assemblies are managed.
  Cause:
  
  Duplicate Entry: The most common cause of this error is that the equipment or assembly you are trying to add is already present in the list you are working with.
  Incorrect Data Entry: There may be a mistake in the data entry process, leading to an attempt to add the same equipment or assembly multiple times.
  System Configuration: In some cases, system settings or configurations may lead to unexpected behavior, causing the system to think that the equipment is already in the list.
  
  Solution:
  
  Check the Object List: Review the current object list to confirm whether the equipment or assembly is already included. If it is, you do not need to add it again.
  Remove Duplicate Entries: If you find that the equipment or assembly is indeed listed, you can remove the duplicate entry if necessary.
  Correct Data Entry: Ensure that you are entering the correct equipment or assembly number. Double-check for typos or incorrect entries.
  Consult Documentation: If you are unsure about the process, refer to SAP documentation or user manuals related to the specific transaction you are using.
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  Related Information:
  
  Transaction Codes: This error can occur in various transaction codes related to maintenance and production, such as IW31 (Create Maintenance Order), IW32 (Change Maintenance Order), or CO01 (Create Production Order).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  User Permissions: Ensure that you have the necessary permissions to modify the object list, as restrictions may also lead to unexpected errors.
  
  By following these steps, you should be able to resolve the IO103 error and continue with your SAP processes.