Relay sends task emails to tell you what work has been requested.
If this is the first time you have worked with a partner, you'll be sent an email inviting you to connect the them.
If you are happy to connect to them, use the link to accept the invitation. If you don't already have a Relay account you can sign up there and then, and it you do have an account you can make the connection straight away by signing in.
You will also get emails about each task. The link in the emails will take you to the task details and the next steps will tell you what you need to do.