If you have a large LinkedIn network, then existing connections can sometimes appear in your search list. You don’t have to worry about filtering these out. Salesloop won’t send a follow-up message to a contact who has already received one from another campaign.
Salesloop will only send a follow-up message to existing connections if there has been no record of any conversation with that profile. So you don’t have to worry about potentially spamming your existing connections with multiple campaign messages.