Why are my Omnisend campaigns reaching fewer people?
The Omnisend help pages give 4 common reasons. The first to rule out: Omnisend recommends sending to recently engaged contacts, so campaigns aimed at engaged segments reach fewer people than the whole list.
Is it broken, or just quiet?
A number can fall because fewer people came, or because something stopped counting them. Below are the causes the Omnisend help pages give, and how to check each one yourself.
What causes it?
Omnisend recommends sending to recently engaged contacts, so campaigns aimed at engaged segments reach fewer people than the whole list.
In the Omnisend help:
Send only to contacts who opened or clicked in the last 6–12 months.
Improve Deliverability with Engaged Contacts | Omnisend Help Center, read 2026-11-12.Omnisend's advice is to unsubscribe contacts who do not respond to a win-back campaign, so cleaning the list this way can shrink the audience later campaigns reach.
In the Omnisend help:
If they don't respond within 7–14 days, unsubscribe them.
Improve Deliverability with Engaged Contacts | Omnisend Help Center, read 2026-11-12.If double opt-in is on for an Omnisend signup form, new email subscribers join the audience only after they confirm, so fewer contacts can be added than forms filled in. It covers email subscriptions from Omnisend's own signup forms only.
In the Omnisend help:
To be added to your Audience, they must confirm their subscription.
Set Up Double Opt-In in Omnisend | Omnisend Help Center, read 2026-11-12.Omnisend limits which promotional messages a contact can get by their subscription status, so contacts who are not subscribed are not reached by marketing campaigns.
In the Omnisend help:
Depending on the subscription status, Omnisend restricts which promotional messages can be sent.
Segment Contacts by Consent Status | Omnisend Help Center, read 2026-11-12.
How do I check it myself?
Check the unsubscribe rate to see whether more subscribers opted out through the unsubscribe link.
In the Omnisend help:
Unsubscribe Rate shows how many subscribers opted out of your marketing list by using the unsubscribe link.
Omnisend Reports: Deliverability | Omnisend Help Center, read 2026-11-12.Export campaign performance data and compare how many people each campaign went to over time.
In the Omnisend help:
Use the Export button in the Campaigns tab to export Campaign Performance data.
Access & Understand Your Omnisend Reports | Omnisend Help Center, read 2026-11-12.
How does Omnisend work with Feder?
- Connect Omnisend to Feder and it joins your Reach apps.
- When you connect Omnisend, Feder checks the connection straight away and shows Connected only when that check passes. If a reading cannot be taken later, Feder shows it as not read, never as zero.
Some numbers are too quiet to judge daily, such as a form filled in a few times a week. Until there is enough of your own history to judge a change, Feder says it is still learning and scores nothing, rather than guessing.
See whether you can trust the numbers in Omnisend, one of your Reach apps. Feder only reads. It never changes anything in Omnisend.
What else goes wrong with these numbers?
- Why does my Omnisend click rate differ between reports?Omnisend
- Why did my email open rate drop in Omnisend?Omnisend
- Why did Google Analytics stop collecting data?Google Analytics
- Why aren't my key events showing in Google Analytics?Google Analytics
- Why does Google Analytics show (not set)?Google Analytics
See every question.
Where do these answers come from?
Every cause and check on this page comes from the Omnisend help pages, quoted above with the date we read them. Last reviewed 2026-11-12. We read them again by 2027-11-12. If one changes, this page changes or comes down.