How To Fix PK459 - Dependent requirement on &1 for material &2 does not lie on workday

SAP Error Message - Details

• Message type: E = Error

• Message class: PK - Production - KANBAN

• Message number: 459

• Message text: Dependent requirement on &1 for material &2 does not lie on workday

What causes this issue?

For material &v2&, the dependent requirement of &v1&, which is
to be used for the
kanban calculation, does not lie on a workday. Furthermore, you have set
that the dependent requirements are not to be smoothed over a certain
period (for example, week). In this case, the requirements date for all
dependent requirements must lie on a workday.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check your master data and restart material requirements planning or set
the kanban calculation so that the dependent requirements are to be
smoothed over a certain period.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PK459 - Dependent requirement on &1 for material &2 does not lie on workday ?

  The SAP error message PK459 indicates that there is a dependent requirement for a material that does not fall on a workday. This typically occurs in the context of production planning and scheduling, where the system is trying to schedule a dependent requirement (like a component needed for production) on a date that is not a valid working day according to the calendar settings in SAP.
  Cause:
  
  Non-Working Day: The date for the dependent requirement falls on a non-working day (e.g., weekends, holidays).
  Calendar Settings: The factory calendar or the production scheduling profile may not be set up correctly, leading to scheduling issues.
  Material Availability: The system may be trying to allocate materials or components that are not available on the specified date.
  
  Solution:
  
  
  Check the Calendar Settings:
  
  Go to the transaction code SCAL to check the factory calendar settings.
  Ensure that the workdays are correctly defined and that the relevant holidays are accounted for.
  
  
  
  Adjust the Production Schedule:
  
  Review the production order or planning run to see if the scheduling can be adjusted to fall on a valid workday.
  You may need to reschedule the production order or dependent requirements to a valid date.
  
  
  
  Review Material Availability:
  
  Check the availability of the materials required for production. Use transaction code MD04 to see the stock/requirements list for the material.
  Ensure that the materials are available on the new scheduled date.
  
  
  
  Use Alternative Dates:
  
  If the dependent requirement is critical, consider using alternative dates that are valid workdays for scheduling.
  
  
  
  Consult with the Planning Team:
  
  If you are unsure about the scheduling or calendar settings, consult with your production planning or scheduling team for further insights.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SCAL: Factory Calendar Maintenance
  MD04: Stock/Requirements List
  CO02: Change Production Order
  MD01: MRP Run
  
  
  
  Documentation: Refer to SAP Help documentation for more details on production planning and scheduling, as well as how to manage calendars and workdays.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message or provide patches or updates.
  
  
  By following these steps, you should be able to resolve the PK459 error and ensure that your production scheduling aligns with the defined workdays in your SAP system.