Log in to QuickBooks Online (https://quickbooks.intuit.com/au/) Choose SIGN IN (top right of the window) and select PRODUCTS AND SERVICES from the drop-down list

This will open the PRODUCTS AND SERVICES screen. From here choose NEW to set up a new product or service.

Set up a PRoduThis will bring up a window asking you to SELECT A TYPE. There are four types you can choose from.
At this point, the set up procedures vary depending on which type of Item you have chosen to set up. Continue to the appropriate procedure below