Can I use Wiz alongside another email platform?

Yes - you can run Wiz at the same time as another email tool (like Klaviyo). Plenty of merchants start out this way while they get comfortable, and most naturally transition to Wiz fully over time.

Running both at once

It's fine to have Wiz and another platform active together. A couple of things to keep in mind so your customers have a good experience:

• Avoid duplicate sends. If both tools are sending the same kind of email (e.g. a welcome or abandoned-checkout series), decide which tool owns which flow so subscribers don't get two versions.
• Using a non-Wiz pop-up? If sign-ups come from another app's pop-up, they won't trigger your Wiz Welcome flow unless we whitelist it first - see Using your own pop-up app with Wiz.

Transitioning to Wiz fully

When you're ready to consolidate, moving everything into Wiz keeps your flows, campaigns, and sending reputation in one place. If you'd like help migrating your setup or contacts from another platform, reach out to our team (see Importing & migrating your contacts).

Common questions

Will running both hurt my deliverability?

Sending duplicate or overlapping emails can, since it annoys subscribers. Split responsibilities between the tools (or move fully to Wiz) to keep engagement healthy - see Email deliverability best practices.

Is there a rush to switch fully?

No. Use both as long as it suits you; transition to Wiz when you're ready.

Updated on: 27/07/2026