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

6P336 - Overview

• 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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

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