How To Fix IW423 - Start date must be earlier than &

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 423

• Message text: Start date must be earlier than &

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 IW423 - Start date must be earlier than & ?

  The SAP error message IW423 ("Start date must be earlier than &") typically occurs in the context of work order management or maintenance planning within the SAP system. This error indicates that the start date you are trying to enter for a work order or maintenance task is not earlier than the specified date (represented by "&"). This can happen in various scenarios, such as when scheduling maintenance tasks or creating work orders.
  Cause:
  
  Incorrect Date Entry: The start date you are entering is either the same as or later than the end date or another date that is being referenced in the system.
  System Configuration: There may be configuration settings in the SAP system that enforce date constraints, leading to this error.
  Data Consistency Issues: There might be inconsistencies in the data related to the work order or maintenance plan that are causing the system to reject the date.
  
  Solution:
  
  Check Date Entries: Ensure that the start date you are entering is indeed earlier than the end date or any other relevant date. Adjust the start date accordingly.
  Review Related Dates: Look at the related dates in the work order or maintenance plan to ensure they are set correctly. This includes checking the planned start date, end date, and any other relevant scheduling parameters.
  Consult Documentation: If you are unsure about the date constraints, refer to the SAP documentation or help files related to work order management for guidance on date settings.
  System Configuration: If you suspect that the issue is due to system configuration, consult with your SAP administrator or technical team to review the settings related to date constraints in the work order management module.
  Data Consistency Check: Run any necessary data consistency checks or reports to identify and resolve any underlying data issues that may be causing the error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IW31 (Create Work Order), IW32 (Change Work Order), and IW33 (Display Work Order) to navigate the work order management process effectively.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional insights or solutions for specific scenarios.
  User Training: Ensure that users involved in work order management are trained on the importance of date entries and the implications of incorrect date settings.
  
  By following these steps, you should be able to resolve the IW423 error and successfully manage your work orders in SAP.