Here's what to do.
First, go to the Clients section. If you see your Client's name listed with an IN PROCESS badge, then you will press the IN PROCESS badge.
This will bring up the steps that you will need to complete before you are fully onboarded.
If you do not see your Client listed in the Clients section, then you must find the original email that Liquid sent to you notifying you that you've been invited to Liquid.
Click the Accept Invite button while logged in to your account to accept your invite and start the onboarding process.