Hi garyjohnbuckley-, thanks for reaching out to the Community
The Products and Services menu in QuickBooks Online lists all items and can't be specified by customer.
To learn more about adding product and service items, please see here. We'll be around if you have any further questions!
You have clicked a link to a site outside of the QuickBooks or ProFile Communities. By clicking "Continue", you will leave the community and be taken to that site instead.