How To Fix >U521 - This item has already been entered; delete

SAP Error Message - Details

• Message type: E = Error

• Message class: >U -

• Message number: 521

• Message text: This item has already been entered; delete

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 >U521 - This item has already been entered; delete ?

  The SAP error message U521 ("This item has already been entered; delete") typically occurs when you are trying to enter a line item in a transaction that has already been entered previously. This can happen in various SAP modules, such as SAP MM (Materials Management), SAP SD (Sales and Distribution), or SAP FI (Financial Accounting), among others.
  Cause:
  
  Duplicate Entry: The most common cause is that the item you are trying to enter has already been added to the document or transaction.
  Session Issues: Sometimes, if you have multiple sessions open, you might inadvertently try to enter the same item in different sessions.
  Data Consistency: The system is designed to prevent duplicate entries to maintain data integrity and consistency.
  
  Solution:
  
  Check Existing Entries: Review the document or transaction you are working on to see if the item is already listed. If it is, you may need to modify or delete the existing entry instead of adding a new one.
  Delete Duplicate Entry: If you confirm that the item is a duplicate and you want to remove it, you can delete the existing entry from the document.
  Use Different Item: If you need to enter a different item, ensure that it is not already in the document.
  Transaction Logs: If you are unsure about the entries, check transaction logs or history to see if the item was entered previously.
  Consult Documentation: Refer to your organization's SAP documentation or guidelines for handling such errors, as there may be specific procedures in place.
  
  Related Information:
  
  Transaction Codes: Depending on the module, you might be using different transaction codes (e.g., ME21N for creating purchase orders, VA01 for sales orders, etc.).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Permissions: Ensure that you have the necessary permissions to modify or delete entries in the transaction.
  Training: If you frequently encounter this error, consider additional training on the specific SAP module you are using to better understand data entry processes.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.