How To Fix IW427 - Backward scheduling: Please enter end date

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 427

• Message text: Backward scheduling: Please enter end date

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 IW427 - Backward scheduling: Please enter end date ?

  The SAP error message IW427, which states "Backward scheduling: Please enter end date," typically occurs in the context of creating or modifying maintenance orders or work orders in the SAP system. This error indicates that the system requires an end date to perform backward scheduling, which is a method used to determine the start date of a task based on its end date.
  
  Cause:
  
  Missing End Date: The most common cause of this error is that the end date for the maintenance order or work order has not been entered.
  Scheduling Parameters: The scheduling parameters may not be set correctly, leading to the system not being able to calculate the necessary dates.
  Order Type Configuration: The configuration of the order type may not allow for backward scheduling without an end date.
  User Input Error: The user may have overlooked entering the end date while creating or modifying the order.
  
  
  Solution:
  
  Enter End Date: The simplest solution is