Option 1
Reach Open Profiles first
Good: A Premium member with Open Profile switched on can be messaged with no credit 4. Every one you find is a credit kept.
Not so good: Only part of any list has it switched on, and checking person by person takes time.
Option 2
Add seats or a bigger plan
Good: More seats mean more monthly credits, and Recruiter can buy additional credits 3.
Not so good: You pay for every seat, and someone on your team still writes, sends and answers every message.
Option 3
Pay for sponsored messages
Good: Reach is bought with an ad budget, so credits do not matter.
Not so good: It arrives as an ad, not as a note from you, and it needs a budget and someone to run the ads.
What LinkedNav does
Have the InMail run for you
Good: You pick a monthly volume. The capacity, the writing, the sending and the replies are handled, from your own account.
Not so good: It is not built for a handful of InMails a month, or for teams that want to operate the software themselves.