How To Fix 6P336 - Schedule line already exists, after "enter" current quantity valid

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 336

• Message text: Schedule line already exists, after "enter" current quantity valid

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 6P336 - Schedule line already exists, after "enter" current quantity valid ?

  The SAP error message 6P336 ("Schedule line already exists") typically occurs when you are trying to create or modify a schedule line in a sales order or purchase order, and the system detects that a schedule line with the same parameters already exists. This can happen in various scenarios, such as when you are trying to enter a new delivery date or quantity for an item that already has a schedule line defined.
  Causes:
  
  Duplicate Schedule Line: You are attempting to create a schedule line for a delivery date or quantity that already has an existing schedule line.
  Incorrect Data Entry: There may be a mistake in the data you are entering, such as the delivery date or quantity, which matches an existing schedule line.
  System Configuration: The system may be configured in a way that does not allow for overlapping schedule lines for the same item.
  
  Solutions:
  
  
  Check Existing Schedule Lines: 
  
  Go to the sales order or purchase order and check the existing schedule lines for the item in question. You can do this by navigating to the item details and reviewing the schedule line overview.
  
  
  
  Modify Existing Schedule Line: 
  
  If you need to change the quantity or delivery date, consider modifying the existing schedule line instead of creating a new one. You can adjust the quantity or date directly in the schedule line details.
  
  
  
  Delete Unnecessary Schedule Lines: 
  
  If there are duplicate or unnecessary schedule lines, you may delete them if they are not needed. Ensure that you have the necessary authorizations to perform this action.
  
  
  
  Consult with Your SAP Administrator: 
  
  If you are unsure about the existing schedule lines or how to proceed, consult with your SAP administrator or support team. They can provide insights into the configuration and help resolve any underlying issues.
  
  
  
  Review Configuration Settings: 
  
  If this error occurs frequently, it may be worth reviewing the configuration settings related to schedule lines in your SAP system. This may involve checking the settings for item categories, schedule line categories, and other related configurations.
  
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like VA03 (Display Sales Order) or ME23N (Display Purchase Order) to view existing orders and their schedule lines.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions for specific scenarios.
  Documentation: Refer to SAP documentation for detailed information on schedule lines, item categories, and how they interact within the sales and purchasing processes.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.