I would like to start using numbers for my invoicing. I plan on making a invoice similar to the template that is provided. I will make another spreadsheet that keeps track of orders, shipping, who has paid, who still owe's etc. Is there a way to link the two so I do not have to input the information twice? I would like to hear some thoughts on how people have used numbers for invoicing. I have looked at YouTube videos but they are very basic. Also if you have any links to learning materials that would be much appreciated.