How To Fix MJ034 - Table & is already in the list

SAP Error Message - Details

• Message type: E = Error

• Message class: MJ - Field Selection

• Message number: 034

• Message text: Table & is already in the 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MJ034 - Table & is already in the list ?

  The SAP error message MJ034 ("Table & is already in the list") typically occurs in the context of the Material Management (MM) module, particularly when dealing with table entries or selections in transactions related to material master data or inventory management.
  Cause:
  This error usually arises when you attempt to add a table or entry to a list that already contains that specific table or entry. It indicates that the system has detected a duplicate entry, which is not allowed in the context of the operation you are performing.
  Solution:
  To resolve the MJ034 error, you can take the following steps:
  
  
  Check the List: Review the list or selection you are working with to confirm whether the table or entry is already present. If it is, you may not need to add it again.
  
  
  Remove Duplicates: If you find that the entry is indeed duplicated, remove the duplicate entry from the list before proceeding with your operation.
  
  
  Use Unique Entries: Ensure that any entries you are trying to add are unique and not already included in the list.
  
  
  Transaction Review: If you are using a specific transaction code, review the steps you are taking to ensure that you are not inadvertently trying to add the same table multiple times.
  
  
  Consult Documentation: If you are unsure about the process, refer to SAP documentation or help resources related to the specific transaction or module you are working with.
  
  
  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: The error may occur in various transaction codes related to material management, such as MM01 (Create Material), MM02 (Change Material), or others.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to perform the actions you are attempting, as sometimes authorization issues can lead to unexpected errors.
  
  By following these steps, you should be able to resolve the MJ034 error and continue with your SAP operations.