Prevent ServiceDesk Plus from auto-assigning site on requests

Prevent ServiceDesk Plus from auto-assigning site on requests

We don't use sites (except for assets) in our implementation of ServiceDesk Plus and for some reason in the past few weeks, some requests are auto-assigning sites which prevents the ticket from being picked up until that field is cleared.  Is there a way to turn that off?  I did some searching but was unable to find a way.  I think I can probably set up 'field & form rules' to clear it automatically, but I rather not add anything if I can just turn it off.  I'm assuming this is getting auto-assigned based on the "Office" field in AD?

Thanks,
Adam

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