Running email for one brand is already a lot of moving parts: brand voice, segments, a campaign calendar, flows, reporting, and client approvals. Running it for ten brands at once is where most agencies start dropping things, or hiring faster than the revenue can carry. Wizel is built for that second world: many Klaviyo accounts, one place to work.
1 workspace
for every client's Klaviyo account, instead of logging in and out all day
Here is how agencies actually use it, surface by surface.
One workspace, every client account
Each client keeps their own Klaviyo account and keys. In Wizel you switch between stores without re-authenticating, and the cross-store views (the campaign board and the calendar) span every client at once with filter chips. You plan a week across all your brands on one screen, then drill into a single store when you need to.
Because Klaviyo rate-limits per account, working across many clients at the same time is fast: each account has its own independent limit, so pulling data for all of them happens in parallel, not one slow client after another.
Brand-aware AI that sounds like the client, not a robot
The thing that breaks generic AI tools for agencies is that every client sounds the same. Wizel holds a separate brand profile per store: the voice and tone, the visual system (colors, fonts, CTA styles), and the product catalog. When you generate a campaign, it is built from that client's brand, so the email reads like them, not like a template with the logo swapped in.
That is the difference between AI you have to rewrite every time and AI that gives you a real starting point. You brief it, it drafts on-brand, you refine and schedule.
Plan and approve across every client at once
The campaign board runs each send through a pipeline from idea to scheduled, so nothing falls through the cracks across ten brands. Approvals are built in: you can give a client a reviewer seat so they sign off on their own campaigns, without handing them the keys to anything else. The calendar shows what is going out, for whom, and when.
Prove your worth without building a deck
The hardest part of keeping a retainer is showing the client it is working. Wizel gives each client an agency-branded portal: a clean monthly artifact in your colors that shows the real numbers (revenue, engagement, what is coming next) without you exporting a spreadsheet or building a slide deck every month. Multi-account reporting rolls the whole roster up for your own team.
The portal is the quiet retention tool. A client who can see the results in your branding every month is a client who renews without a hard conversation.
Where agencies feel it
Every store
managed from one login, with shared boards and calendars
Brand-aware
AI campaigns generated from each client's own voice and visual system
Agency-branded
client portals that show results in your colors, not a spreadsheet
Add it up and the agency math changes. The same team handles more brands, the AI removes the blank-page grind, and the reporting that used to eat a day a month builds itself. You spend your time on strategy and the work that clients actually pay a premium for.
Onboard a client into Wizel
- 1
Connect the client's store
Add the client's Shopify store and connect their Klaviyo account so customers, orders, and on-site events sync into the workspace.
- 2
Set up the brand profile
Capture the client's voice and tone, visual system (colors, fonts, CTA styles), and product catalog so every generation is on-brand.
- 3
Generate the first campaign
Brief Wizel on the campaign, let the brand-aware AI draft it in the client's voice, then refine the copy and design.
- 4
Plan the calendar
Lay out the month on the cross-store calendar so the client's sends sit alongside your other brands and nothing collides.
- 5
Set up client approval
Give the client a reviewer seat so they approve their own campaigns without access to anything outside their store.
- 6
Share the client portal
Turn on the agency-branded portal so the client sees their results in your branding every month, with no manual reporting.
Frequently asked
Can I manage multiple Klaviyo accounts in one place with Wizel?
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Yes. Wizel is built around multiple Klaviyo accounts, each with its own keys. You switch between client stores without re-authenticating, and cross-store views like the campaign board and calendar span every client at once.
Does the AI match each client's brand voice?
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Yes. Wizel holds a separate brand profile per store covering voice, tone, visual system, and catalog, so generated campaigns read like that specific client rather than a generic template.
How do clients see the results of our work?
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Each client gets an agency-branded portal: a monthly artifact in your colors showing real revenue and engagement numbers plus what is coming next, so you prove value without building a deck. Multi-account reporting rolls the whole roster up for your team.
Can clients approve campaigns before they send?
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Yes. You can give a client a reviewer seat so they sign off on their own campaigns through the approval workflow, without access to anything outside their store.