You can invite additional contractors to your existing Contracts on mobile. The process is simple. Keep reading to learn how!
Navigate to Active Projects and select your Project
Tap Invite People
Tap Invite a Contractor
Tap Contract
Select an existing contract or click Create New
If you clicked Create New, enter the Contract Name and Value and tap Create Contract
Enter the email for the new user and click Send Invite
To cancel or resend the invite, navigate to Contracts, tap your contract, tap Users and Permissions, and tap My Contractor Users 
Tap Pending Invites > select your user(s)> and tap Cancel Invite or Resend Invite
You can invite additional contractors from this screen by tapping + Contractor