&1 &2 date &3 entered is on a &4

What causes this issue?

The system checked if &v3& is a Saturday or Sunday.
The <GL:factory_calendar>logistics/factory calendar</> could not be
checked, as at the time of the check there was no calendar assigned to
a <GL:plant>plant</>. Consequently, the system cannot check if &v3& is
a public holiday.

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?

Please check your entries.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.