Use an InMail when you have credits (or the person has an open profile) and a concrete offer that needs more than 200 characters; use a connection request when you want a lighter first touch or have no credits left. Neither "burns" a candidate. A generic text does. The deciding factors are your InMail allotment, how senior or confidential the role is, and whether you plan a second channel. The rest of this guide gives the limits, a decision table and five message patterns you can adapt. Limits and quotas are as described by LinkedIn and vendor documentation in November 2026; check the current LinkedIn help pages before you plan around a number.
Connection request or InMail: the short comparison
| Connection request | InMail | |
|---|---|---|
| What it is | An invitation to connect, optionally with a short note | A direct message to someone you are not connected with |
| Length | Note up to 200 characters on free accounts (vendor documentation reports 300 on Premium) | Subject up to 200, body up to 1,900 characters; LinkedIn recommends 200 to 400 characters |
| Cost | No credit; free accounts can personalise only a limited number of notes per month (reports range from three to ten, check the editor) | Uses one InMail credit from your allotment; credit returned if the person replies, historically within 90 days |
| What happens next | You can message freely only after they accept | The person can answer at once, without accepting anything |
| Best for | Long-term network, passive talent you want to keep warm, no credits left | A specific role with pay range and reason, senior or confidential approaches |
Sources: LinkedIn Help and LinkedIn Talent Solutions guidance on InMail length and credit-back, vendor help pages for connection-note limits; details in our guide to InMail limits and cost per reply. LinkedIn's own response figures are LinkedIn's claims and not independently verified.
Does a connection request burn the candidate?
An ignored invitation costs the candidate nothing and usually leaves no trace on your side. What does damage is the way you ask: a pitch pasted into the note, a message that reads like a mass mailing, or a second invitation after a decline. LinkedIn lets recipients answer "I don't know this person", and repeated negative responses can lead to limits on your invitations; the thresholds are not published. So the rule is simple: send fewer requests, each with one honest reason, and never re-send after an ignore or decline.
How to decide in four questions
- Do you have credits left, or does the person have an open profile? If yes, an InMail is the direct route. If no, send a connection request and move the pitch to the first message after acceptance.
- Can you say who, what and why in 400 characters? If you can, an InMail works. If the role needs context, make the first message a question and send details after the reply.
- Is the role confidential (agency mandate) or senior? Senior candidates read InMails more carefully; a short, specific InMail beats a request with a pitch. For confidential roles, state what you can share and offer the name after a call.
- Is there a second channel? Our recommendation: combine LinkedIn with a plain email follow-up. Each channel reaches people the other misses, and the follow-up does not touch your LinkedIn quota. Check the legal basics first (contacting candidates by email).
Five message patterns to adapt
Replace everything in brackets and rewrite the first line so it can only be about this person. Keep each message under about 120 words.
1. Connection note (up to 200 characters)
Hi [first name], your talk on [topic] caught my eye. I am hiring a [role] at [company] ([pay range]). If it is not for you, no problem; if it is, I would be glad to share details.
2. InMail for a specialist with a concrete offer
Subject: [Role] at [company]: [one concrete problem]
Hi [first name], I read your write-up on [project] and how you handled [detail]. We need a [role] in [city or remote] to work on [problem]. Range: [€ from to]. Would a 15-minute call next week be worth it? If not, tell me and I will not write again.
3. InMail for a senior or confidential role (agency)
Subject: [Role] for a [sector] scale-up, [city]
Hi [first name], I work with a [size] company hiring a [role]. I cannot name them yet. What I can share: [team size], [stage], [range], [location policy]. Your time as [their role] at [company] is the reason I am writing. I can give you the name after a short call.
4. Follow-up after an accepted request (day 2 to 3)
Thanks for connecting, [first name]. One line on why I wrote: we are hiring a [role] and the first project is [X]. The range is [€ from to]. Happy to send the description if that is useful.
5. Email follow-up after no reply (day 5 to 7)
Subject: Following up on [role], one new detail
Hi [first name], I wrote on LinkedIn last week about a [role] at [company]. One more fact that may matter: [team detail or range]. If this is not the right moment, tell me and I will not contact you again. I found your public profile on [LinkedIn]; how I handle your data is described here: [link].
A collection of ready-to-use templates (InMail, email, follow-ups) as a download is in preparation; the full template guide is recruiter outreach templates.
A worked example: what an InMail really costs
These numbers are assumptions. A Lite seat costs about $1,680 a year in market reports; assume it sends 20 InMails a month, 240 a year. That is about $7 per InMail. At an assumed reply rate of 20 percent, one reply costs about $35; at 10 percent, about $70. A connection request with a note costs no credit, but it has a time cost and a lower chance of a direct answer. The lever is not the choice of format but the quality of the first line and the target list. More on the maths: LinkedIn InMail limits.
Where automation fits, and where it does not
Preparing the list, checking every profile against the requirements, drafting the text and timing the follow-up can be automated. The first line should still be checked by a person. Tools that act inside your LinkedIn session run into LinkedIn's rules on third-party software; we explain the line in LinkedIn automation for recruiters: safe or banned?. In Sprad Active Sourcing, connection requests, messages and InMails (from your own quota) and email follow-ups are managed in one inbox per candidate; a reply stops the sequence, and the system warns when a colleague has already contacted the person. Messages leave from your own connected accounts, so LinkedIn's rules apply to them as they do to anything you send yourself. Details: Sprad Active Sourcing.
FAQ
Is a connection request or an InMail better for passive candidates?
For passive candidates with a specific role, a short InMail with the range and one reason usually gives the clearest signal. For people you may want to keep in your pool, a connection request is the lighter start. Test both on the same role and compare replies per message.
How long should the first message be?
Between 200 and 400 characters for an InMail according to LinkedIn's guidance; up to 200 characters for a connection note on a free account (vendor documentation; LinkedIn changes such limits, so check the editor).
How many follow-ups are reasonable?
Two to three touches in total across channels, each adding something new, and a stop after a clear no or any personal reply.
Do I need a Recruiter licence for InMails?
InMail credits come with Recruiter seats and Premium plans. If you plan to leave your licence, see the transition plan.
Jürgen Ulbrich
Jürgen Ulbrich has more than a decade of experience in developing and leading high-performing teams and companies. As an expert in employee referral programs as well as feedback and performance processes, Jürgen has helped over 100 organizations optimize their talent acquisition and development strategies.
