How To Fix 6P337 - Schedule line already exists, quantity will be added after confirmation

SAP Error Message - Details

• Message type: E = Error

• Message class: 6P - Messages for planned independent requirements (Appl.area 60)

• Message number: 337

• Message text: Schedule line already exists, quantity will be added after confirmation

Self-Explanatory Message

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• What is the cause and solution for SAP error message 6P337 - Schedule line already exists, quantity will be added after confirmation ?

  The SAP error message 6P337 ("Schedule line already exists, quantity will be added after confirmation") typically occurs in the context of sales order processing or delivery scheduling. This message indicates that there is already a schedule line for the specified item in the sales order or delivery, and any additional quantities will be added to that existing schedule line after confirmation.
  Cause:
  
  Duplicate Schedule Line: The system has detected that a schedule line for the same material and delivery date already exists in the order.
  Quantity Adjustment: You may be trying to add more quantity to an existing schedule line, which is not allowed until the current schedule line is confirmed.
  Order Processing Logic: The business logic in SAP may be set up to prevent the creation of multiple schedule lines for the same item on the same date.
  
  Solution:
  
  Confirm Existing Schedule Line: If you are trying to add quantity, first confirm the existing schedule line. This can often be done through the transaction code related to sales order processing (e.g., VA02 for changing sales orders).
  Check Schedule Lines: Review the existing schedule lines for the item in question. You can do this by navigating to the sales order or delivery document and checking the schedule line details.
  Adjust Quantity: If you need to change the quantity, you may need to adjust the existing schedule line rather than creating a new one.
  Consult Documentation: If you are unsure about the process, refer to your organization's SAP documentation or consult with your SAP support team for guidance on handling schedule lines.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as VA01 (Create Sales Order), VA02 (Change Sales Order), and VL01N (Create Outbound Delivery) to manage sales orders and deliveries.
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  User Roles and Permissions: Ensure that you have the necessary permissions to modify schedule lines in the system.
  Business Process: Understand the business process flow related to sales orders and deliveries in your organization, as this may affect how schedule lines are managed.
  
  If the issue persists after following these steps, it may be beneficial to engage with your SAP support team or consult with an SAP expert for further troubleshooting.