Automatic add the stock and update the supplier account

Not currently. The Warehouses Screen does not allow for Partial Payment of an Invoice. You must pay the Entire Invoice.

Odd, there should be a few, or at least one that shows this. I will try to locate one or show in my next post a clear method for doing this.

This is done automatically when you have things set up properly. But again, there is no means of doing partial payment, with the rest of the Invoice to be paid later, when you use the Warehouses Screen.

The PHP Inventory System that I built can probably handle this though, because it “reverses” the flow, and does not force you to Pay at all, and you can do partial payments from different source accounts, even with different currencies.