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Integrations › Mailchimp
Integration ·
Marketing

One Mailchimp audience, every event a tag

Stop building a new audience for each event. All contacts stay in one place, and registration and check-in arrive as tags. There is no one-click connector for this: it runs over Streavent's Open API or over Zapier, Make and n8n.

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Streavent
Streavent
Mailchimp
Veranstalter, die mit Streavent arbeiten
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The problem

Every event gets an audience, and Mailchimp counts people twice

You set up one audience for the spring congress and another for the fall forum. Audiences in Mailchimp do not share data. Anyone at both counts as two contacts, and nobody can see at a glance who came twice. That is why Mailchimp itself recommends one primary audience, organized with tags, groups or segments. It only works if the attendee list does not get stuck in the ticketing tool after the event.

Data flow

How your data moves

The most common flows, each as a live sync.

arrow_forward From Mailchimp into your event

Mailchimp
Tag / segment
Streavent
Streavent

Invite a tag or segment

Last year's guests already sit under a tag in Mailchimp. Pass that tag or segment to Streavent over the API or Zapier and send the invitation from there, with no file export.

Mailchimp
Streavent
Streavent

Mailchimp
Streavent
Streavent

arrow_back From your event back into Mailchimp

Streavent
Streavent
Registration
Mailchimp

Registration with a contact status

Known addresses get updated, and new ones receive the status from your mapping. Only Subscribed gets marketing email. Non-subscribed gets transactional email, and Pending waits for confirmation.

Streavent
Streavent
Check-in
Mailchimp

Check-in as a tag

Registered, attended or no-show: the check-in status becomes a tag on the contact. The "Tag added" trigger can then start a marketing automation flow (formerly a Customer Journey), such as a thank-you with the replay link.

Streavent
Streavent
Lead + note
Mailchimp

Booth leads with an event tag

Leads scanned at the booth reach Mailchimp with an event tag, and the conversation note goes into a text field. Watch the length, because Mailchimp truncates text fields at 255 bytes.

These are the most common flows, not all of them. Speakers, sponsors, agenda and more sync too, and you can create a whole event straight from your tool.

How it works

How event data reaches your Mailchimp audience

code

Open API: add or update

Streavent's Open API (REST, from the Growth plan) gives you registrations, check-in status and leads. On the Mailchimp side, one call per person is enough: it finds the contact by email address or creates it.

sync

No code: Zapier, Make or n8n

Streavent triggers a flow in Zapier, Make or n8n. The flow adds the Mailchimp contact, updates it and sets the tag. You build the mapping once, and no development is needed.

hub

Tags on a fixed naming scheme

Before the first sync, decide what your tags are called, for example event name, year and "attended". Use merge fields (also called audience fields in the app) for values that should appear in emails. They must exist on the audience before a contact can fill them.

For your team

One event signal for your whole team

campaign

Marketing: segments from tags

Combine "Forum 2026 attended" and "Congress 2025 registered" in one segment. The invitation goes straight to your regulars, and the campaign no longer goes to everyone.

forward_to_inbox

Finance: no duplicate contacts

When someone sits in two audiences, Mailchimp counts two contacts. One audience for all events keeps the number that counts toward your plan's contact limit clean.

event_available

Event team: no post-event export

Invitation, registration, check-in, badges and app run on one data set in Streavent. Nobody has to prepare an attendee list for Mailchimp afterward.

Availability

Set up during onboarding, data protection as standard

We set up the integration together during onboarding, tailored to your systems.

  • GDPR-compliant with a data processing agreement
  • Hosting in Germany, ISO 27001 (in certification)
  • Accessible registration flows (EAA-compliant)

Customer Stories

Loved by event teams across industries

Meet the people behind the events: real teams who plan, run, and scale their events with Streavent.

“We ran the entire event in one system and went live in under a week.”

Christoph Newiger, Co-Founder Research Inititative Ostheopathy

“Our event app basically builds itself, with content syncing automatically from our CRM.”

Stefan Sutor, CEO Medien Bayern GmbH

“We deliver our AI webinars as professional livestreams in top quality, all from one platform.”

Franziska Weindauer, CEO, TÜV AI Lab

“We build event landing pages without an agency, and it shows a clear ROI.”

Christina Armbruster, Marketing Manager, Optigrün international AG

“Check-in was effortless, even volunteers were ready in minutes.”

Ludwig Rabe, Co-Founder Blütezeit Collective & APOGEO Festival

“Digital, hybrid, in-person: the platform gives us full flexibility, with a truly professional look.”

Alexandra Straka, Event Manager, German Road Safety Council

“We ran check-in entirely through the platform, and the analytics help us improve every event.”

Lars Eggers, CEO Seses Drinks & Host AGM Congress

“Our CRM connects directly via API, so we build complete events in just a few clicks.”

Christiane Schäfer, Event Manager, DWA BW

“The all-in-one solution we scale up or down for every event, seamlessly integrated with our CRM.”

Dr. Ricarda Engelmeier, CEO Münchner Management Kolloquium

An audience that knows every event

We look at your audience and your next event with you and settle which tags, fields and contact statuses the connection sets, over the Open API or Zapier.

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FAQ

Frequently asked questions

Streavent is all-in-one event software for professional B2B events with 200 to 5,000 attendees that connects to Mailchimp over its Open API. Contact data from the registration, the check-in status and booth leads with notes reach your audience as contacts, tags and fields. Registration, ticketing, check-in, badge printing and event app run in one platform, hosted in Germany.

No. You connect Mailchimp over the Open API (REST, from the Growth plan) or through Zapier, Make and n8n. Once set up, a registration becomes a contact, a check-in becomes a tag and a booth lead becomes a tagged contact. A native sync exists today only for HubSpot, Salesforce and DATEV.

In most cases, one for everything. Mailchimp recommends one primary audience because audiences do not share data and duplicates add to your contact count. You assign tags internally, contacts pick groups themselves on a form, and segments filter on both. Mailchimp says a second audience makes sense when you serve clearly separate customers, such as vendors and buyers.

Only with the Subscribed status. When you send to a segment, Mailchimp removes everyone else. You choose the status a new address receives in the mapping, and it has to match the consent you collect at registration. With double opt-in a contact stays Pending until they confirm, and Mailchimp deletes it after 60 days without confirmation. Mailchimp stays your email tool, and Streavent supplies the event data.

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