If a poll didn't reach the sample size you wanted, or if you want a new wave of responses on a completed poll, you can send more invitations to the same target group without creating a new poll. Vottiv tracks each wave as a separate cohort, so you can compare how attitudes shift over time.

When Can You Send More Invitations?

You can boost a poll in any of these states:

Active — Still collecting responses. A boost adds more invitations to the same in-flight poll.
Completed — Reached its sample size. A boost re-opens the poll for new responses and resets the completion timer.
Expired — The invitation window closed without hitting the sample size. A boost re-arms the poll so new invitees have a fresh 30-day window to respond.

How to Send More Invitations

Open the poll from Portal → Polls.
Click Send More Invites.
Review the voter pool breakdown (more on this below).
Use the slider to choose how many additional invitations to send (in increments of 100, up to the pool size or 50,000).
Pick a payment method (Campaign Credits or Credit Card via Stripe).
Click Send Invitations.

Once you confirm, Vottiv begins sending the new invitations using the same two-peak SMS delivery schedule used for the original poll.

Voter Pool Breakdown

Before you commit, the modal shows exactly who is eligible to receive a new invitation:

Fresh voters (not yet invited) — People in the target group who haven't been invited to this poll yet.
Already invited, eligible for another invite — Voters who were invited previously but are eligible again because more than 72 hours have passed since their last invitation.
Opted out of poll invitations — Voters who have asked not to be polled. Vottiv skips these automatically; they're shown for transparency.
Available to invite — The total pool you can draw from for this boost (fresh + re-invitable).

72-hour cooldown. A voter will never receive two poll invitations from the same poll within 72 hours, even if you keep boosting. This protects your reputation and keeps response rates honest.

Cost

Additional invitations are billed at $0.10 per invitation. The modal shows the total cost as you move the slider, and the slider's maximum is capped by both your voter pool size and a hard ceiling of 50,000 invites per boost.

Payment Methods

Campaign Credits — If you have a credit balance, the cost is deducted instantly and invitations begin sending right away. The modal shows your current balance.
Credit Card (Stripe) — Pay for this boost with a card. You'll be sent through Stripe Checkout; once payment is captured, invitations are queued automatically.

If your credit balance can't cover the boost, the modal automatically switches you to Stripe.

What Happens to a Completed or Expired Poll After a Boost

Boosting a finished poll re-opens it:

Its status returns to Active until the new sample size is reached or the new invitation window closes.
The sample size target is increased to include the new invitations.
A fresh 30-day expiration is set for the new invitees.
Reminders go out on the standard schedule (first reminder 24 hours after invite, then again before expiry).

If you start a second boost while an earlier boost is still running, only the newer boost's completion timer applies — older boost timers are superseded so we don't close the poll prematurely.

Boost Comparison: Tracking Sentiment Over Time

Each boost is stored as its own cohort. On the poll detail page, the Boost Comparison section shows side-by-side response distributions for each cohort along a movement chart. This lets you see whether attitudes are shifting between waves — useful for tracking sentiment across an election cycle.

FAQs

Will boosted invitees see the same questions?
Yes — the survey content stays the same. Their responses are tagged with the boost cohort so you can compare cohorts on the dashboard.

Can I change the target group when boosting?
No — boosts always draw from the original poll's target group. To target a different group, create a new poll.

Will opted-out voters ever be re-invited?
No. Voters who opted out of poll invitations are permanently skipped across every poll and every boost.

What if a voter received the original invite but never replied?
If more than 72 hours have passed, they appear in the "re-invitable" pool. They'll get a second chance once you boost.

Need Help?

If your voter pool looks smaller than expected or the boost isn't sending, contact support — we can confirm the eligibility breakdown and help diagnose any delivery issues.