Connect Mailchimp with Chatarmin and use both channels in parallel. Sync contacts, reach email non-openers via WhatsApp, grow both lists simultaneously.
Quick check for decision makers
Your email tool and WhatsApp working together.
Mailchimp audiences and tags flow automatically into Chatarmin. WhatsApp data flows back into Mailchimp profiles.
Contact name, email, tags, merge fields, and audience membership from Mailchimp to Chatarmin. In return: WhatsApp opt-in status, message history, flow results, and bot responses as Mailchimp tags. The sync runs in real time, no manual CSV export needed.
Reach email non-openers via WhatsApp. Newsletter CTAs open WhatsApp flows. Both channels complement each other without cannibalizing.
Step 1: Mailchimp identifies contacts who did not open the newsletter. Step 2: This segment exports to Chatarmin. Step 3: Chatarmin sends a WhatsApp follow-up to exactly this group. Result: 85% open rate on WhatsApp for an audience that was unreachable via email.
Collect emails in WhatsApp flows and sync to Mailchimp. Generate WhatsApp opt-ins in newsletters. Both lists grow simultaneously.
Contacts on two channels generate on average 2 to 3x more revenue than contacts on just one channel. The WhatsApp welcome flow collects the email and writes it directly to Mailchimp. The Mailchimp newsletter contains a WhatsApp opt-in link. After 3 to 6 months you build significant cross-channel overlap.
Mailchimp audiences and tags flow automatically into Chatarmin. In return, Chatarmin writes WhatsApp opt-in status, message history, and flow results back as Mailchimp tags.
This enables segmentation across both channels: you create a Mailchimp segment of all contacts with the tag "WhatsApp Opt-in" and send that group a dedicated email campaign. Or you use Mailchimp tags in Chatarmin to target WhatsApp campaigns at specific customer groups.
The sync runs in real time. No manual CSV export, no copy-paste between tools. Changes in Mailchimp are immediately visible in Chatarmin and vice versa.
The strongest long-term effect of the integration: both lists grow simultaneously. In the WhatsApp welcome flow you collect the email address and sync it to Mailchimp. In your Mailchimp newsletter you place a WhatsApp opt-in link.
After 3 to 6 months you have significant overlap: contacts you reach via both channels. These contacts generate on average 2 to 3x more revenue than contacts on just one channel.
Mailchimp shows you who did not open the newsletter. Chatarmin sends a WhatsApp follow-up to exactly this segment. 85% open rate instead of 0%.
In the WhatsApp welcome flow you collect the email address. Chatarmin syncs it automatically into your Mailchimp audience. Both lists grow in parallel.
Tags, preferences, and interaction data flow in both directions. Your customer profile is always in sync across Mailchimp and Chatarmin.
Mailchimp stays your email tool. Chatarmin becomes your WhatsApp channel. The integration connects both systems so you can sync contacts, tags, and interaction data in both directions.
The principle: Mailchimp audiences flow into Chatarmin. WhatsApp data flows back into Mailchimp. You build cross-channel campaigns without manually importing contacts or maintaining data in two places.
The connection runs via the Mailchimp API or through Make.com/Zapier as middleware. You do not need a developer. Copy the Mailchimp API key, paste it into Chatarmin, done.
52 sales calls in our database mention Mailchimp. The typical use case: e-commerce brands with an established Mailchimp list that want to add WhatsApp as a second direct channel.
The most important principle: Chatarmin does not replace Mailchimp. WhatsApp complements email. Both channels have different strengths and reach different parts of your audience.
Email via Mailchimp has a 20-40% open rate. WhatsApp via Chatarmin has an 85% open rate. That means: a significant portion of your Mailchimp list does not open your emails. You reach those contacts via WhatsApp.
Here is how the cross-channel logic works in practice:
These three use cases alone justify the integration for most Mailchimp customers. No cannibalizing, no either-or. Both channels benefit from each other.
E-commerce brands with an established Mailchimp list and the desire to add a second direct channel. Three profiles come up most frequently:
Honest take: if you need very complex segmentation logic (e.g. 50+ dynamic segments, deep Shopify event tracking), Klaviyo is the more powerful choice as an email tool. Mailchimp + Chatarmin is a perfect fit for teams already using Mailchimp who want to add WhatsApp.
Disclaimer: All data conducted from over 50+ Sales Calls with DACH Ecom Owners
The connection between Mailchimp and Chatarmin incurs no additional integration costs. You need an active Mailchimp account and a Chatarmin account. If you use Make.com or Zapier as middleware, their respective pricing applies.
For WhatsApp messages, Meta charges 11 cents per marketing message in Germany. In Austria and Switzerland it is around 5 cents (as of 2026). Service messages within a 24-hour window are free.
11 cents per message sounds like a lot at first. But WhatsApp messages generate 2 to 3x higher revenue per recipient than emails. Assume you generate 1 EUR revenue per recipient via email, then you will land at around 2.50 EUR via WhatsApp. Minus 11 cents in Meta fees, you still have 139% higher net margin per contact than via email. That is why over 450 e-commerce brands successfully run WhatsApp marketing with Chatarmin.
What leading E-Commerce brands from the DACH region say about armincx
Besser im Glas
“The best tool for WhatsApp on the market.”
Bems Home
“Effective CRM upgrade through features and top-notch support.”
Rudelkönig
“Easy implementation and great collaboration.”
Besser im Glas
“The best tool for WhatsApp on the market.”
Bems Home
“Effective CRM upgrade through features and top-notch support.”
Rudelkönig
“Easy implementation and great collaboration.”
Create a Chatarmin account and connect the WhatsApp Business API.
Add the API key from Mailchimp and select your audience.
Build your first cross-channel flow and start growing both lists in parallel.
The Mailchimp integration setup takes under 15 minutes:
Chatarmin offers personal onboarding. Our solution engineering team helps with setup, including Make.com middleware configurations. The first productive flow is typically live within 48 hours of the onboarding call.
Chatarmin hosts all data on servers in Germany. The WhatsApp Business API runs through the official Meta interface.
Mailchimp stores data in the US by default but offers Data Processing Agreements (DPA) for EU customers. For maximum GDPR compliance, some DACH merchants switch from Mailchimp to Brevo (EU-based). Chatarmin integrates with both.
Opt-in management is built directly into Chatarmin: only contacts with valid WhatsApp opt-in receive marketing messages. Double opt-in for email (Mailchimp) and WhatsApp (Chatarmin) runs separately and in full GDPR compliance.
The more powerful email alternative for teams with complex segmentation needs and deep Shopify event tracking.
Email and SMS from one tool. Chatarmin is one of the few WhatsApp providers with a native Omnisend integration.
The deepest native integration for e-commerce: abandoned cart, post-purchase, and revenue attribution directly from Shopify.
Everything you need to know about the Mailchimp WhatsApp integration.
Chatarmin does not replace Mailchimp. WhatsApp complements email as a second direct channel. Mailchimp stays your email tool, Chatarmin becomes your WhatsApp tool. Both systems sync contacts and tags automatically. The combination generates more revenue than either channel alone.
Yes, and that is exactly the point. WhatsApp reaches the contacts who do not open your emails. About 60-80% of your Mailchimp list does not open your newsletter. Via WhatsApp you reach a portion of this group with an 85% open rate. This is not an either-or decision.
Bidirectional. From Mailchimp to Chatarmin: contact data, audience membership, tags, and merge fields. From Chatarmin to Mailchimp: WhatsApp opt-in status, tags from WhatsApp flows, and collected data like email addresses from the welcome flow. The sync runs in real time.
The setup runs via the Mailchimp API or through Make.com/Zapier as middleware. You do not need a developer. Copy the API key from Mailchimp, select your audience, done. For more complex setups, our solution engineering team helps with configuration. Setup takes under 15 minutes.
Mailchimp stores data in the US by default but offers a Data Processing Agreement for EU customers. Chatarmin hosts all data on servers in Germany. For maximum GDPR compliance, some DACH merchants switch from Mailchimp to Brevo (EU-based). Chatarmin integrates with both.
The connection between Mailchimp and Chatarmin has no additional costs. Per WhatsApp marketing message, Meta charges 11 cents in Germany and around 5 cents in Austria and Switzerland (as of 2026). Service messages within 24 hours are free. WhatsApp messages generate on average 2 to 3x higher revenue per recipient than emails.
Yes. Chatarmin integrates with Mailchimp, Klaviyo, Omnisend, and Brevo. If you switch from Mailchimp to Klaviyo, your Chatarmin integration stays intact. You just add the new API key. Your WhatsApp channel works independently of your email tool.
