How To Fix BC409 - Error: Simultaneous use of public holiday calendar and factory calendar

BC409 - Overview

• Message type: E = Error

• Message class: BC - Scheduler (calendar)

• Message number: 409

• Message text: Error: Simultaneous use of public holiday calendar and factory calendar

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BC409 - Error: Simultaneous use of public holiday calendar and factory calendar ?

  The SAP error message BC409 indicates that there is a conflict between the public holiday calendar and the factory calendar in your configuration. This error typically arises when the system is trying to process a date or a time-related function that requires both calendars, but they are not set up to work together properly.
  
  Cause:
  
  Configuration Conflict: The error usually occurs when a public holiday calendar is assigned to a company code or plant, but the system is also trying to use a factory calendar that does not align with the public holiday calendar.
  Inconsistent Settings: If the public holiday calendar and factory calendar have overlapping or conflicting definitions, the system cannot determine which calendar to use for scheduling or planning purposes.
  Missing Assignments: If either calendar is not properly assigned to the relevant organizational units (like company codes or plants), it can lead to this error.
  
  
  Solution:
  
  
  Check Calendar Assignments:
  
  Go to the configuration settings in