How To Fix TU186 - Factory calendar is not maintained. Intervals are calculated in work days

TU186 - Overview

• Message type: E = Error

• Message class: TU - Billing/Scheduling/Budget Billing

• Message number: 186

• Message text: Factory calendar is not maintained. Intervals are calculated in work days

What causes this issue?

You have set the indicator <ZH><LS>Take factory calendar into account</>
</>. However, you have not entered a corresponding factory calendar.

System Response

No factory calendar is considered when generating schedule records, as
no factory calendar was entered. The data is calculated using calendar
days, not work days.

How to fix this error?

Enter a factory calendar.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

TU186 - Details

• The SAP error message TU186, which states "Factory calendar is not maintained. Intervals are calculated in work days," typically occurs when the system is unable to find a valid factory calendar for the specified plant or location. This can lead to issues in scheduling, planning, and other operations that rely on the factory calendar to determine working days and non-working days.
  
  Cause:
  
  Missing Factory Calendar: The primary cause of this error is that the factory calendar has not been defined or assigned to the relevant plant or location in the system.
  Incorrect Configuration: The factory calendar may be incorrectly configured or not linked to the relevant organizational units.
  Plant or Location Issues: The plant or location for which the operation is being performed may not have a factory calendar assigned.
  
  
  Solution:
  To resolve the TU186 error, you can follow these steps:
  
  
  Check Factory Calendar Assignment:
  
  Go to the transaction code SPRO (SAP Reference IMG).
  Navigate to Enterprise Structure >