Connect Mailchimp to WhatsApp, Instagram, TikTok and AI Chat

By Alva Chew 6 min read Updated October 30, 2026

Customers and subscribers message you on WhatsApp, Instagram, Messenger, TikTok, Telegram, web chat or email, but your marketing list lives in Mailchimp. AeroChat answers those conversations and works with Mailchimp as it goes. It checks whether someone is subscribed and what they signed up for, and it adds or updates them with their consent, records their interests and unsubscribes them when they ask. It connects through Mailchimp’s public API. You describe the workflow in your own words, and AeroChat builds it.

What you can do with Mailchimp and AeroChat

  • Add chat contacts to your audience with consent. When someone agrees in chat to hear from you, AeroChat adds or updates them in Mailchimp with a record of how and when they agreed. Nobody is added without a yes.
  • Answer subscription questions and unsubscribe on request. AeroChat checks the subscriber in Mailchimp, tells them what they are signed up for, and unsubscribes them or narrows what they get when they ask.
  • Recognise returning subscribers. AeroChat looks up the member by email and uses what Mailchimp already knows, such as their tags and the last campaign they received.
  • Tag subscribers by interest. When someone asks about a product line or an event, AeroChat adds the matching tag so your segments pick them up.
  • Log what happened in chat. AeroChat adds a member note or a member event, such as a chat signup, that your automations can use.

Works on every chat channel

Your subscribers and customers message you wherever they already are. The same Mailchimp connection and the same workflows run on every channel AeroChat supports, and Mailchimp stays the record whichever one they use.

Channel What your subscribers and customers can do
WhatsApp Message your WhatsApp Business number to join your list, ask whether they are subscribed, change what they hear about or stop your emails. Voice notes are transcribed, so a spoken request works too.
Instagram Send the same requests by direct message. A comment on your post can get an automatic reply that moves the conversation to a DM.
Facebook Messenger Send the same requests to your Facebook Page. Comments on your Page posts can get an automatic reply too.
TikTok Send the same requests by TikTok direct message or TikTok Shop buyer chat. Both arrive in the same TikTok inbox.
Telegram Send the same requests to your business on Telegram.
Web chat Do the same from the chat on your website, without leaving the page.
Email Write to your Gmail or Office 365 address and get the same answer the chat gives.

How the connection works

AeroChat connects through Mailchimp’s public API. It reads and writes audiences (lists), members and their subscription status, tags, merge fields, notes, member events and member activity, and the ecommerce orders of a connected store. Each workflow uses only what its recipe asks for. AeroChat adds someone to a marketing audience only after they agree in the conversation.

To connect, an account owner or admin creates an API key in Mailchimp under Account, Extras, API keys, and copies it. Mailchimp’s Marketing API documentation explains the key and what it can reach. Paste the key into the AeroChat dashboard when AeroChat asks.

You describe the workflow in your own words. AeroChat builds it as a draft, works out which Mailchimp calls it needs, and asks you to connect. Keys and credentials are entered in the AeroChat dashboard and never pass through the conversation.

Workflows to copy

Copy this into AeroChat

When someone in chat says they want to hear about new arrivals or offers, ask for their email and confirm they agree to receive marketing emails from us. Only if they say yes, add or update them in our Newsletter audience (example) in Mailchimp with status subscribed, their first name and a tag for the channel they used. If they say no, carry on helping and add nothing.

Copy this into AeroChat

When someone on our Newsletter audience (example) asks about kids’ shoes, bridal or another product line, find their member record in Mailchimp by email. Add a tag for that interest, such as interest-kids (example). Add a member event called chat_enquiry (example) with the product line as a property. Do not change their subscription status. Reply in the customer’s language.

Who uses it

Online stores use it to grow their list from the questions shoppers already ask in chat, such as when an item is back in stock or when the next sale starts. These pages show the kind of conversations it fits:

What stays in Mailchimp

Mailchimp stays your record. Your audiences, tags, segments, campaigns, automations and reporting live there, and your team still writes and sends the campaigns.

AeroChat handles the conversation. It reads and updates the subscriber records your recipe asks for and leaves the rest to Mailchimp and your team.

WhatsApp workflows that use Mailchimp

These end-to-end WhatsApp workflows run with Mailchimp behind them. See them all in the WhatsApp workflows library.

Questions

Does AeroChat work with Mailchimp?

Yes. AeroChat connects through Mailchimp’s public API with an API key you create in Mailchimp.

Can WhatsApp contacts join my Mailchimp audience?

Yes, when they agree in the chat. AeroChat asks first, and only adds them to your audience in Mailchimp after a clear yes. If they say no, it carries on helping and adds nothing.

Do I need a developer?

No. You describe the workflow in your own words, create an API key in Mailchimp and paste it in, and switch it on. AeroChat builds the Mailchimp connection from your description and shows a checklist of what is left to do.

Which plan do I need?

Workflows via Skills are on every plan, Free included. Choose by message volume: Starter covers 500 AI responses a month and 3 seats, Growth covers 2,000 responses and 10 seats and adds payment links and broadcasts, and Advanced covers 5,000 responses and 25 seats.

Using a different system? If it has a public API, it connects to AeroChat the same way: describe what you want, paste in its key, and it runs.

Can’t find your tool? Message us in the chat on this page and we’ll tell you how it connects.

Connect Mailchimp and try it

Paste the first recipe, add your Mailchimp API key, and join your own audience from the chat.

Start your 7-day free trial. No credit card needed.

On Shopify? Install AeroChat from the Shopify App Store.