How To Fix MPN10009 - Schedule lines exist for main item

MPN10009 - Overview

• Message type: E = Error

• Message class: MPN10 - Messages: Purchasing IS A&D/E&C 3.0 MPN Interchangeability

• Message number: 009

• Message text: Schedule lines exist for main item

Self-Explanatory Message

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• What is the cause and solution for SAP error message MPN10009 - Schedule lines exist for main item ?

  The SAP error message MPN10009, which states "Schedule lines exist for main item," typically occurs in the context of materials management and sales order processing. This error indicates that there are existing schedule lines for the main item in a sales order or purchase order, which prevents certain actions from being completed, such as deleting or changing the main item.
  
  Cause:
  
  Existing Schedule Lines: The primary cause of this error is that the main item has associated schedule lines that are already defined. Schedule lines are used to specify delivery dates and quantities for items in a sales order or purchase order.
  Item Status: The item may be in a status that does not allow for changes or deletions while schedule lines are present.
  Order Type Restrictions: Certain order types may have restrictions on modifying items that have schedule lines.
  
  
  Solution:
  To resolve the MPN10009 error, you can take the following steps:
  
  
  Check Schedule Lines:
  
  Navigate to the