What does it mean to sell services using WooCommerce? It means that a seller provides services personally to each customer, so selling a service cannot be fully automated.
How does it work? Firstly, a customer visits a website and views a list of services. Secondly, he orders one of the services. Finally, a seller contacts a customer to provide the service.
Selling services
Step 1 — Open the WordPress Dashboard and select the Products tab.
Step 2 — Click the Add New button and set a title, description, tags, categories, images, etc. for a product.

Step 3 — Then, proceed to the Product data section and set Simple product type for this particular product.

Step 4 — Afterwards, tick the Virtual checkbox as shipping is not needed for this type of product. You can also allow visitors to download the product and tick the Downloadable box.
Step 5 — Switch to the Inventory tab and uncheck the Manage stock? option.

Step 6 — Navigate to the Publish block and click the Publish button.
That’s all for now. Have fun!