What LinkedIn actually says
Three help pages cover invitations, and none of them contains a number.
On the limit itself. The page titled Invitation limit reached says: "If you reach the limit, your account may be temporarily restricted from sending invitations. This restriction typically lasts one week." It adds that you will not be able to send invitations until the restriction is lifted, that withdrawing pending invitations will not remove it, that you cannot buy or acquire more invitations while restricted, and that LinkedIn cannot remove or shorten the wait period.
On what triggers a restriction. The page Types of restrictions for sending invitations names three situations: you have sent many invitations within a short amount of time; many of your invitations have been ignored, left pending, or marked as spam by the recipients; and, in LinkedIn's words, "If you send an excessive number of invitations and we suspect the use of an automation tool, we may suspend or restrict your account." It says most restrictions are removed automatically within one week, that after you withdraw an invitation you cannot resend one to the same recipient for up to three weeks, and that if you are restricted for too many outstanding invitations you should wait up to one month.
On network size. Members can have up to 30,000 first-degree connections. At that point Follow becomes the default button on your profile and you cannot send or accept invitations until you remove some.
That is the whole of the official position. Every specific number you have read elsewhere, including the "100 a week" that most tools quote, comes from observation, not from LinkedIn.
What the data says about the real ceiling
Reachium runs LinkedIn outreach for its customers and publishes studies on the sending data, with the sample, the window and the limitations stated on each one. Two of them answer this question directly.
The ceiling is 25 a day, and almost everyone sits on it. Across 10,023 active account-days of sending, the median day and the 90th-percentile day are the same number: 25 invitations. 75.8% of active days ran at 25 or more. Fewer than 1% of days recorded more than 25, and those rows are send-attribution artifacts rather than evidence of a way past the ceiling. Whatever LinkedIn's internal rule is, the behaviour of thousands of real sending days converges on 25.
| Metric across 10,023 sending days | Value |
|---|---|
| Median invites on an active day | 25 |
| 90th-percentile day | 25 |
| Share of days at 25 or more | 75.8% |
| Share of days above 25 | under 1% |
Twenty-five a day across five working days is 125 a week; across seven it is 175. Both sit above the "100 a week" folk figure, which is one reason that figure should be treated as a rough guide rather than a rule.
Acceptance falls before you reach the cap. On a separate frozen cohort of 180,155 matured requests, acceptance peaked at 32.0% for accounts averaging 10 to 19 invites a day and fell to 26.7% for accounts averaging 20 to 29. The 20 to 29 band carried 89.6% of all requests measured, so most senders sit in the worse-performing band by default.
| Average invites per day | Acceptance rate | Share of all requests |
|---|---|---|
| 10 to 19 | 32.0% | the minority |
| 20 to 29 | 26.7% | 89.6% |
The practical reading: the account that sends 15 a day gets more accepted connections per request than the account that sends 25, and runs further from whatever threshold LinkedIn applies. Volume is not free.
What this means for how you send
Treat 25 as a ceiling, not a target. The data shows it is where sending stops, not where results are best. Plan campaigns around 10 to 19 invites a day per account and you are in the band where acceptance peaked.
Watch pending invitations, not just sent ones. LinkedIn names "many of your invitations have been ignored, left pending" as a trigger in its own words. Withdraw invitations that have sat for three or four weeks, and do it before you are restricted, because withdrawing does nothing once the restriction is active and locks you out of re-inviting that person for up to three weeks.
Expect a restriction to last a week, and plan for it. LinkedIn will not shorten it and cannot be asked to. A team running several accounts should stagger them so a restriction on one does not stop the pipeline.
Personalised notes are rationed on free accounts. Free members get five personalised invitation messages a month; Premium removes the cap. Reachium's data on notes is worth reading before you spend them: among people who accepted, 47.8% replied when the request carried a note against 25.5% when it did not, while the effect of a note on acceptance itself tested inconclusive.
Message limits, briefly
People searching for the connection limit often want the message limit too, so here is what exists.
LinkedIn publishes no daily cap for messages to your first-degree connections. It does say it may limit messages to members you are not connected to, and it operates a separate credit system for InMail, which has its own page on this site. LinkedIn's group limits page puts the number of new message requests a group admin can send to non-connections in their group at 50 a day.
Automation tools apply their own ceilings. Reachium's MCP server, for example, caps new DMs at 50 a day per workspace and replies at 50 per LinkedIn account, reserved before the send so a runaway agent stops rather than runs. Those are product tripwires sized well above legitimate daily use, not LinkedIn rules, and they are described on the MCP server page.
A note on automation and restriction risk
LinkedIn's help page is explicit that suspected use of an automation tool is itself grounds for restriction. That applies to every tool in the category, including Reachium, which reaches LinkedIn through Unipile, a provider with no LinkedIn partnership. No vendor can promise an account will not be restricted, and anyone who does is promising something they do not control. What a vendor can offer is control over volume and pacing. Reachium's defaults sit under the 25-a-day ceiling because its own data shows acceptance peaks at 10 to 19, and its full guidance on sending responsibly is on the ethical outreach page.