Refresh back end tables when front end is opened

I have a form that opens on startup in my front end.
I'd like to include some code in the on load event of this form that will
trigger an update of the tables in the back end, if the date criteria are
satisfied.
The code to update the tables is in the backend.
I suppose I could move that code to the front end (at least the administrator
copy of the front end) and run it from there.
But, I was wondering if there is any way to trigger code to run in the back
end from the on load event of a form in the front end.

Thanks,

--
Bill Reed

"If you can't laugh at yourself, laugh at somebody else"

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