How To Fix /SAPAPO/RET_MESSAGES153 - Start date must be a workday

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/RET_MESSAGES -

• Message number: 153

• Message text: Start date must be a workday

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RET_MESSAGES153 - Start date must be a workday ?

  The SAP error message /SAPAPO/RET_MESSAGES153 indicates that the start date you are trying to use in a planning or scheduling operation is not a workday. This error typically occurs in the context of Advanced Planning and Optimization (APO) when you are trying to create or modify a planning object, such as a production order, a transportation order, or a forecast.
  Cause:
  
  Non-Workday Selection: The date you have selected as the start date falls on a weekend or a holiday that is not considered a workday in the system.
  Calendar Settings: The factory calendar or the planning calendar configured in the system may not include the selected date as a valid workday.
  Configuration Issues: There may be issues with how the workdays are defined in the system, leading to incorrect identification of workdays.
  
  Solution:
  
  Select a Valid Workday: Change the start date to a date that is confirmed as a workday. You can check the calendar settings in the system to identify valid workdays.
  Check Factory Calendar: Review the factory calendar settings in the SAP system to ensure that the correct workdays and holidays are defined. You can do this by navigating to:
  
  Transaction Code: SCAL (for maintaining calendars)
  Transaction Code: OVX5 (for checking factory calendar settings)
  
  
  Adjust Planning Parameters: If necessary, adjust the planning parameters or settings to ensure that the system recognizes the intended workdays correctly.
  Consult with SAP Basis or Configuration Team: If you are unsure about the calendar settings or if the issue persists, consult with your SAP Basis or configuration team to ensure that the system is set up correctly.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SCAL for calendar maintenance and MD01 for running planning.
  Documentation: Refer to SAP documentation or help resources for more information on configuring workdays and calendars in SAP APO.
  User Exits and BAdIs: If your organization has custom logic implemented, check for any user exits or BAdIs that might affect date calculations.
  
  By following these steps, you should be able to resolve the error and proceed with your planning activities in SAP APO.