There is a "deposit" field on my invoices right after "total due" and right before "balance". If I enter a number here, it reduces the Balance Due. My question is: Is this used to indicate a deposit that has already been paid? Or is it to indicate that I require a deposit now, meaning customer isnt expected to pay the full invoice amount at once?

I would use it if the latter, but the former wouldnt suit my needs.

Thanks in advance