Services are the things you do for your clients (Web development, Design, SEO, etc.). In Productive, they are also what your team will track time against. Please add the most common service types you deliver to your clients. You can change this later by deleting existing ones or adding new ones.
Go to Settings.
Choose Service types in the left navigation.
Write the name of the service and click Add service type.
Continue doing this until you have added all of the Services you sell to your clients.