How To Fix V1518 - For item &1, the following has already been invoiced: &2 &3

SAP Error Message - Details

• Message type: E = Error

• Message class: V1 - Verkaufsbelegbearbeitung

• Message number: 518

• Message text: For item &1, the following has already been invoiced: &2 &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message V1518 - For item &1, the following has already been invoiced: &2 &3 ?

  The SAP error message V1518 indicates that there is an issue with invoicing in the sales and distribution (SD) module. Specifically, the message states that for a particular item (denoted as &1), there has already been an invoice created for a certain quantity (denoted as &2) and possibly for a specific billing document (denoted as &3). This typically occurs when there is an attempt to invoice more than what has already been billed for that item.
  Cause:
  
  Duplicate Invoicing: The most common cause of this error is an attempt to create an invoice for a quantity that has already been fully invoiced.
  Incorrect Billing Document Reference: The system may be trying to reference a billing document that has already been processed.
  Sales Order Status: The sales order may have been partially delivered, and the system is preventing further invoicing for the already invoiced quantity.
  Billing Plan Issues: If there is a billing plan associated with the sales order, it may restrict invoicing based on the defined schedule.
  
  Solution:
  
  Check Existing Invoices: Review the existing invoices for the item in question. You can do this by checking the billing document history in the sales order or using transaction codes like VF03 (Display Billing Document).
  Adjust Quantity: If you need to invoice additional quantities, ensure that the quantity you are trying to invoice is not greater than what is available for invoicing. You may need to adjust the sales order or delivery to reflect the correct quantities.
  Review Sales Order: Check the status of the sales order and ensure that it allows for further invoicing. If the order is fully billed, you may need to create a new order for additional quantities.
  Billing Plan Review: If a billing plan is in place, verify that the billing dates and quantities are correctly set up and that you are following the plan.
  Consult Documentation: Refer to SAP documentation or your organization's SAP support team for specific configurations or customizations that may affect invoicing.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as VA03 (Display Sales Order), VF03 (Display Billing Document), and VL03N (Display Outbound Delivery) to investigate the issue further.
  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 create invoices and that there are no restrictions in place.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in the SD module for further assistance.