Reference Field Options

I have set up a reference field for contacts that are linked to the school field when I created a new entry. I am using a Google form to create a new entry but because these fields are linked to the Google form will not input the information. If I unlink the field will it create a new entry contact every time even if they are already in the system? Our system is also connected to Quickbooks I realize the school has to come from a drop-down for Quickbook to be able to make them a payee, but am unsure if a new contact entry will be created each time.  It would be really great if the Google form could also input the school and contact but I think it might now be capable because it is pulling the information from a drop down.

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Rebecca Crissman
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