Connect OptiMonk to Klaviyo (OAuth, not API keys), BigCommerce, Keap, Ontraport, Google Tag Manager or a webhook. The old Klaviyo private-key screenshots are out of date.
Vendor documentation · checked 2026-09-05
Choose the connection for your workflow, then verify what reaches the destination. These are source-based findings; the checks below are our evaluation guidance, not hands-on test results.
The April 2026 guide uses account authentication, followed by list selection and field mapping.
The documented mapping can pass the displayed coupon into a custom property for email templates.
The directory lists Mailchimp, ActiveCampaign, HubSpot, Brevo, Omnisend and other destinations.
Shopify, WooCommerce, Magento, WordPress and other platforms appear in the directory.
The directory provides webhook and Zapier routes for connecting other marketing tools.
Suggested setup checks
An installed script and a saved connector are useful milestones; verify delivery before sending traffic.
Write down the store, campaign, destination account, list and expected follow-up. Keep a separate pass/fail result for popup display, contact delivery and automation.
Choose the authentication and field mapping documented for that destination. A successful connection to one marketing tool does not validate another.
Submit a test address you control. Compare each submitted value with the resulting profile, including the coupon if used. Record the campaign and submission time.
Complete any confirmation, inspect the expected message and test the relevant tracking or flow condition. Escalate with the failed step and a redacted example; exclude credentials and real customer details.
6 of 6 guides available
OptiMonk still installs on BigCommerce through Script Manager, but the snippet now belongs in the Header, not the Footer. Copy it from Profile → Settings → Insert code, then create a Script on All pages.
Connect Ontraport with an App ID and API key, map campaign inputs, refresh available tags, and verify a test contact from submission to follow-up.
Authorize Keap in OptiMonk, finish campaign field and tag mapping, and verify the resulting contact with a controlled form submission.
You still install OptiMonk through Google Tag Manager as a Custom HTML tag on All Pages. The copy-code step now starts on the OptiMonk dashboard embed prompt, not a left-menu Insert code link.
Configure an OptiMonk webhook, map form fields and verify received requests. Check multi-step limitations before relying on downstream lead processing.
OptiMonk no longer asks for Klaviyo public and private API keys. As of the April 2026 help article, you authenticate with OAuth, pick a list and map fields. Older screenshots of Create Private API key are out of date.
Questions before you decide
The April 2026 guide uses account authentication from the campaign’s integration settings. Select the Klaviyo account, grant access, choose the destination list and map the fields. Use this current workflow when an older tutorial asks you to paste API keys.
Yes. The guide maps the displayed coupon to a Klaviyo custom property that can be used in an email template. Test that the delivered email contains the same usable code as the popup; saving the mapping is only the configuration step.
Treat these as separate checks. Installing the app or snippet makes on-site campaigns possible; the selected campaign still needs its intended destination and field mapping. Verify both display and contact delivery before declaring the integration complete.
OptiMonk lists webhooks and Zapier alongside native connectors. Before selecting either route, confirm which fields the destination needs, who maintains the connection and how failed deliveries will be noticed. Availability of a connector does not prove that your particular workflow is supported.
Check the selected account and list, then check confirmation. With double opt-in enabled, the subscriber must accept the confirmation email before joining the list. Use a test address you control to follow that step before treating the missing list entry as a failed transfer.
No. The current Klaviyo guide uses account authentication; Omnisend’s June 2026 guide uses an API key copied from its Apps connection. Follow the destination-specific instructions, then verify the campaign mapping.
Contact delivery and event tracking are separate. Omnisend says OptiMonk form signups do not automatically track contact events and directs users to JavaScript contact identification. Check that setup for event-based automation; for welcome messages, also inspect the welcome-email setting and campaign tags used by the flow.
Omnisend documents custom values arriving as strings, including number and date inputs. Field names are case-sensitive and allow Latin letters, numbers and underscores. Inspect a sample value in the destination before building a numeric or date-based segment.
