How To Fix IO126 - Product & is already in the object list

SAP Error Message - Details

• Message type: E = Error

• Message class: IO - Plant Maintenance: Object List

• Message number: 126

• Message text: Product & is already in the object list

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message IO126 - Product & is already in the object list ?

  The SAP error message IO126, which states "Product & is already in the object list," typically occurs in the context of Integrated Planning or when working with product master data in SAP. This error indicates that the product you are trying to add or process is already included in the list of objects being handled in the current transaction or operation.
  
  Cause:
  
  Duplicate Entry: The most common cause of this error is that the product you are trying to add has already been included in the list of products for the current planning run or transaction.
  Session State: Sometimes, the session may not have been refreshed properly, leading to stale data being processed.
  Incorrect Logic in Custom Code: If there are custom enhancements or user exits, they might be incorrectly handling the product list.
  
  
  Solution:
  
  Check the Object List: Review the list of products you are working with to confirm if the product in question is