Why is my LinkedIn campaign sending slowly?
If your LinkedIn campaign appears to send fewer invites or messages than you expected — or seems to stop sending after a few — there is almost always a safe and intentional reason. WarmySender's #1 priority on LinkedIn is your account's survival. A banned LinkedIn account is unrecoverable, so the platform errs heavily on the side of caution.
Reason 1: LinkedIn's per-account limits (the hardest constraint)
LinkedIn enforces strict per-account limits regardless of which automation tool you use. WarmySender respects these limits because exceeding them is the fastest way to get an account restricted or banned.
- Free LinkedIn account: ~150 invites per week (no note attached). Some free accounts that send invite notes have been observed at as low as ~5 invites per month before LinkedIn temporarily blocks further invites. Free accounts hit weekly caps fastest — if you are running an aggressive invite campaign on a free account, expect a low ceiling.
- LinkedIn Premium: ~80-100 invites per day (~200/week typical).
- LinkedIn Sales Navigator: ~80-100 invites per day (~200/week typical).
- LinkedIn Recruiter: ~200/week typical, plus separate InMail credit pool.
These are LinkedIn's safety thresholds, not WarmySender's. If your account hits the weekly cap on Tuesday, no third-party tool can make LinkedIn accept more invites until the cap rolls over. WarmySender will detect this, mark the prospect for retry 4-8 hours later, and try again. The prospect is never silently dropped.
Reason 2: The 4-6 week safety ramp on every new account
A new LinkedIn account connected to WarmySender does NOT immediately send at full speed. Every new account starts in a conservative ramp window:
- Week 1: ~10-15 invites/day (around 70-105/week)
- Week 2: ~20 invites/day
- Week 3: ~30 invites/day
- Week 4+: full ramp (subject to your account-type cap above)
This ramp matches LinkedIn's safe expectations for a new automation pattern. Older accounts with established history (used WarmySender for 1+ months without restriction) move faster. Accounts that have ever been restricted move slower (Recovery strategy: 8-week ramp at half speed).
Reason 3: We honor 'try again later' responses correctly
When LinkedIn responds 'cannot resend yet — temporary provider limit' to an invite attempt, that is LinkedIn telling us to back off for a few hours. Our system's response: reschedule that prospect's invite for 4 to 8 hours later (with a small random offset to avoid bursting), and DO NOT advance the prospect past the invite step. The next scheduler tick will retry. Because of this behavior, you may see a campaign sit at a low daily count for a day or two, then rebound the next day once the per-account window has rolled over.
Reason 4: Your campaign's own schedule
Each campaign has 'schedule_days' (which days of the week sending is allowed) and a sending window (which hours, in your campaign's timezone). Common patterns: weekdays only, Mon/Tue/Wed only, Tue-Thu. If today isn't a scheduled day, your campaign correctly sits idle. If you set Mon/Tue/Wed and it is now Thursday, you will see 0 sends — that's by your configuration. Edit schedule from campaign settings.
Reason 5: We never bulk-replay missed sends after an outage
If a fix or reconnect happens after a quiet period, WarmySender does NOT 'catch up' by sending a burst of held-back invites. Bursting after a gap is exactly the pattern LinkedIn uses to detect automation. Throughput catches up naturally over the next 1-2 weeks of normal scheduling.
What to check first if you think your campaign is too slow:
1. Go to LinkedIn → Accounts and check your account type pill (Free / Premium / Sales Navigator / Recruiter). Free accounts have the lowest cap.
2. Check 'connected for X weeks' — if under 4 weeks, you are still in the safety ramp.
3. Open the campaign's analytics and look for skipped enrollments labeled 'rate limited' or 'cannot resend yet' — those are LinkedIn-side caps, not bugs.
4. Check schedule_days and sending window — make sure today and now is within them.
5. Check whether your account is shared across multiple campaigns. One account = one daily/weekly cap, split across all campaigns it powers. If you have 4 campaigns on one account, they are competing for the same 50 message-equivalent slots/day.
When to contact us:
If your account is connected for more than 4 weeks, you are within schedule, you have weekly cap remaining, and you still see no sends for >24 hours, email hello@warmysender.com with the campaign name and your timezone. We will dig into the specific row.
For the LinkedIn limits we enforce against, see Unipile's full provider-limits doc: https://developer.unipile.com/docs/provider-limits-and-restrictions