Built forCS-CartAdd-ons for CS-Cart & Multi-Vendor, from an independent developer

Email Marketing Connect

by Kavio Labs · for CS-Cart & Multi-Vendor

Sync customers, marketing consent, orders and abandoned checkouts to Klaviyo or Brevo, with a consent log.

Tested on 2 builds Updated Nov 3, 2026 Version 1.0.0 CS-Cart, Multi-Vendor 4.17.2 – 4.21.x No core file edits
Built forCS-Cart

What it does

For stores that run their email marketing in Klaviyo or Brevo and need clean, consented data from CS-Cart. You use your own account and API key; their plans and limits apply. The add-on sends profiles, list subscriptions and events from the server, so no tracking script is added to your pages. All flows were tested against a local server that answers like the Klaviyo and Brevo APIs; a test with your live account is up to you.

How it works

Choose Klaviyo or Brevo, paste the API key, pick the subscriber list and test the connection. Shoppers see an unticked opt-in checkbox at checkout and on the registration and profile forms. Every change becomes a job in a queue that is sent right after the page or by cron, with retries on errors. Marketing, Email marketing sync shows waiting, sent and failed jobs, the consent log with CSV export and the history import.

Features

  • Klaviyo (private API key) or Brevo (API key v3), your own account
  • Opt-in checkbox at checkout, registration and profile, with your own text
  • Consent log with time, source, consent text and IP, CSV export
  • Subscriptions and unsubscribes synced to the list you choose
  • Customer profiles with name, phone and address
  • Placed Order, Ordered Product, Fulfilled and Cancelled Order events, once per order
  • Started Checkout for abandoned checkout flows
  • Viewed Product for signed-in customers, server side
  • Queue with retries, Send now, cron job and a sync dashboard
  • History import of customers, subscribers and past orders
  • Bridge for the subscriptions of the core Newsletters add-on
  • Klaviyo catalog feed URL and daily Brevo product sync

What you get

Packagekv_email_connect-1.0.0.zip, installed through Add-ons → Manage add-ons
Updates & support12 months included. Download new versions from your account and install them in Add-ons → Manage add-ons or the Upgrade Center.
License1 production installation. Staging, dev and localhost are free and unlimited. The add-on keeps working after the update period ends. How licensing works
Version
1.0.0
Updated
Nov 3, 2026
CS-Cart
4.17.2 – 4.21.x
Tested on
CS-Cart 4.17.2, Multi-Vendor 4.17.2
PHP
7.4 – 8.3
Core edits
None
Add-on ID
kv_email_connect
Developer
Kavio Labs Software Limited

Support

Policy
Bug reports
1 business day
How-to questions
2 business days
Channel
Tickets in your account

Buy with confidence

What stands behind your license

  • Tested builds

    This product was tested on these builds. Builds we did not test are not listed.

    • CS-Cart4.17.2
    • Multi-Vendor4.17.2
  • 12 months of updates

    Updates and support are included in the price. The product keeps working afterwards; renewing is optional.

    How licensing works
  • 30-day refund

    If it is not what you expected, tell us within 30 days and we refund the order.

    Refund policy
  • Secure checkout

    Card payments are processed by Stripe. Your card number never reaches our server.

    Ask a pre-sales question

Sold by Kavio Labs Software Limited, registered in England and Wales No. 17532441. About us

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