How to add products and services to new invoice

This app allows the user to set up a database for products and services, the user can then select from this database when creating invoices.

Choose "Add items to invoice"
Select invoice number
Start by typing the item name into the first column of the items table
Choose the matching item and enter quantity (If needed, go to to "Create New Item" to set up new items)
Go to Command bar > "Save"