A connection request invites someone to connect on LinkedIn. You can send one to a single person from the Replygrow inbox, or send them at scale with a campaign.
Send a connection request from the inbox
Click Inbox in the left menu and select the person you want to invite.

Hover over the blue + button next to the message field and select Invite to connect.

In the dialog, write your message and click Send.
Insert placeholders with the buttons above the field. The limit is 300 characters.

Connection request limits
Replygrow sends up to 100 invitations a day. We recommend staying under 300 a week to keep your account safe. New accounts start with a warm-up that raises the daily number gradually.