I am doing an invoice system where there is a part to add a customer, then when you want to send an invoice, you see a field with a drop down menu of customer names plus a button that says add a new customer in case it’s a new one. How can I do this?
I think you should customize your dropdown, i.e create your own, have it “Do a search for all customers name” then you can add your plus sign beside it to run the action you want…