Video walkthrough · Audience Builder
Send Time Campaigns
Send every subscriber your campaign at the hour they actually engage. Jandex sorts everyone who engaged in the last 30 days into one best-time window, then builds a single omnichannel draft in Klaviyo with a path per window. Nobody lands in two paths, and nobody gets skipped.
Klaviyo only1 min 17 sVoiceover and captions
How it works
One campaign, sent at everyone's best time
- One best time per person. Everyone who opened or clicked a campaign in the last 30 days goes into exactly one time window: the one they engaged in on the most days.
- Automatic opens are ignored. Apple Mail Privacy and other machine opens fire when the email lands, not when it is read, so they would put people in the window you happened to send at.
- Nobody gets it twice. Each window has its own list and every person is in only one of them. The General path excludes every time list.
- Nobody is skipped. People with no real opens or clicks in the last 30 days, and anyone in a window you switch off, get the General path as long as they are in your fallback segment.
- Up to 9 windows at once. Klaviyo allows 10 paths in one campaign and General is always one of them.
The steps
From Jandex to a Klaviyo draft
- Open Audience Builder and pick the Send Time Campaign tab.
- Refresh the 10 best-time lists.
- Copy your usual exclusions from a past campaign, once.
- Pick a fallback segment for the General path.
- Set a send time for each window, or switch small ones off.
- Name it, check and preview, then create the draft.
In Klaviyo
Finish and schedule
- Add your email to each path.
- Set each path's send time to the one in its name.
- Turn Smart Sending off on every path, and do not use send in the recipient's local time. Windows and send times already use your account's timezone.
Refresh the lists before each campaign, then leave them until every path has sent, so nobody moves between paths mid-campaign.
You need
A Klaviyo account connected to Jandex, with email engagement in the last 30 days. The draft only sets up audiences: nothing is scheduled or sent until you do it in Klaviyo.
Jandex · Resources · Build 2026-10-16-a