To edit a product, go to the Products tab, select the product you currently need and click on the button with three dots.
From the drop-down menu, select the Edit Product Families option.
Just like when creating a product, the data is divided into 2 blocks: details and billing information.
Please note that changing the Tax, Type of services and Country (and State for some countries) items may cause changes in tax rules, which will affect the total amount in the generated invoices.
Make the necessary changes and then click on the Update button.