How To Fix WS104 - Active version of calendar & does not currently exist in system

WS104 - Overview

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 104

• Message text: Active version of calendar & does not currently exist in system

What causes this issue?

The system tried to read calendar &V1&. However, this no longer exists
in the system.

System Response

The function (Default value date) cannot be executed.

How to fix this error?

Create the system in the calendar or change the settlement process type
so that a valid calendar is used. If necessary, contact your system
administrator.
Execute the function again.

Error message extract from SAP system. Copyright SAP SE.

WS104 - Details

• SAP Error Message:
  WS104 - Active version of calendar & does not currently exist in system
  
  
  Cause:
  This error occurs when the system tries to access or use a public holiday calendar or factory calendar version that is marked as active but does not actually exist in the system. In other words, the system expects an active version of a calendar (e.g., factory calendar or holiday calendar) to be present, but it cannot find it in the database.
  Common scenarios include:
  
  The calendar version was deleted or never created.
  The calendar version is inactive or not maintained properly.
  The system is referencing a calendar version that is not valid for the current date or context.
  
  
  Explanation:
  In SAP, calendars (factory calendars, public holiday calendars) are maintained with versions. Each version is valid for a certain period and can be active or inactive. When scheduling or time evaluation processes run, they look for the active calendar version valid for the