There are a number of resources to explain how Billings and Daylite work together.

• Here is our webpage on Billings-Daylite integration.
  

• Check out this tutorial video illustrating the integration between Daylite and Billings.
  

• Once you install Billings, choose Help > Billings Help. Click 'Integrating with Daylite' to open a series of articles that talk about Daylite-Billings integration.