As an admin in LinkedIn Recruiter, you can resend a license activation email to new users on your contract.
When a new user on your contract is assigned a license, they receive an invitation email with an activation link that expires after seven days. If the link expires, you can resend a license activation email from the LinkedIn Admin Center.
If you’d like to send invitations to more than 2,000 users, to avoid long upload times, use one of the following methods: CSV uploads or Groups (segment users into separate sections and perform bulk actions on them).