Can I suppress profiles in a flow?

Question

I have been trying to have less steps of suppressing profiles and I’m trying to streamline this.  I have John Doe list of bots? maybe, that keep creating profiles in Klaviyo.  I want to setup a flow that supresses these so I don’t have to keep going in and doing this.  This list is already to 150 so I don’t know how to solve this problem.  Please help 😭

whereisjad · Accepted Answer

Here is an automated way to do it. Have a Segment triggered flow that includes a webhook action that calls:

POST https://a.klaviyo.com/api/profile-suppression-bulk-create-jobs/

with headers:

Authorization: Klaviyo-API-Key your-private-api-key

accept: application/vnd.api+json

revision: 2025-10-15

and payload:


{
  "data": {
    "type": "profile-suppression-bulk-create-job",
    "attributes": {
      "profiles": {
        "data": [
          {
            "type": "profile",
            "attributes": {
              "email": "{{person.email}}"
            }
          }
        ]
      }
    }
  }
}

andrewbuildr · Answer

The webhook-in-a-flow approach above works for the automation itself — but since this is Strategic Advice: if bots keep creating these profiles, you'll be suppressing forever downstream. The more durable fix is to stop them at the source:

Turn on reCAPTCHA / spam protection in your Klaviyo sign-up form settings (Forms → your form → Settings). Kills most automated submissions.
Enable double opt-in on the list they land in — bots almost never confirm, so they never become active (or billable).
On custom/embedded forms, add a hidden honeypot field: real users leave it blank, bots fill it.
Look for the bot signature (created in bursts, gibberish local-parts, same domain/source) and block those domains.

For the ~150 already in there you don't even need a flow — a saved segment matching the bot pattern + a one-off bulk suppress clears them, and you can re-run it whenever. (The flow + webhook is great if you want it fully
hands-off.)

One billing note in case it's relevant: if these junk profiles are nudging you toward a higher active-profile tier, make sure they're suppressed before your billing date — Klaviyo counts active profiles at the billing date, so suppressing after it means you still pay for them that cycle.

(Disclosure: I build a Klaviyo cost tool, unblot — it's aimed at unengaged real subscribers timed to your billing date, not bots, so the source-fixes above are what you actually want here. Happy to help on the billing side if junk signups are spiking your tier, though.)

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