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Mailchimp Transactional – Connection

Estimated reading time: 2 min
Mailchimp banner, yellow background.

Mailchimp Transactional is a separate service from Mailchimp’s main marketing platform. It’s specifically designed for sending transactional emails, which are automated messages triggered by specific events or user actions.

Prerequisite:
To use Mailchimp Transactional Email with Wiresk, you must have a Mailchimp account, you can create one here.
For more information about the integration, refer to Mailchimp API endpoint documentation.

A connection to your Mailchimp is needed so we can sync it with our platform.

There are two ways to connect your app to Wiresk:

  • In “My apps” section, where you can manage your connections (select or create your group first to get access to this section, refer to the Group system ).
  • While building your Flow, you can easily establish a connection to your app directly within the Flow builder. This can be done during the setup of either a Trigger or a Method.

This guide explains how to set up a connection in “My apps” section, which is essentially the same process as creating one on-the-go.

  • On your Wiresk’s Dashboard, select your Group.
  • On the left panel, go to “My apps” and select Screenshot 2025 04 08 at 9.58.41 in the morning Mailchimp Transactional - Connection
  • Search the app name in the search field or select it in the apps list.
Animated image GIF, showing the step of how to create an app connection. First, select the group then select the + create button.

On the connection settings panel:

  • Give a name to your connection, here we will name it “Mailchimp Transactional”.
  • Select Mailchimp Transactional connection tab
  • Enter the Mailchimp Transactional API Key:
Screenshot of Wiresk Add apps screen. It shows the connection screen of Mailchimp transactional.

Go to your Mailchimp Account here.

  1. Select Automations >Transactional email.
  2. Click on “Launch App” button, you will be redirected to Mailchimp Transactional app (formerly mandrill).
Screenshot of Mailchimp home page with numbered red arrows that point to different fields for launching Transactional Email.

Now, connect to Mandrill Using your Mailchimp account.

Screenshot of Mandrill login screen with text explaining what is Mandrill and a button to log in using Mailchimp account.

On Mandrill (Mailchimp Transactional) interface, go to Settings > Add API Key

Screenshot of Mandrill (Mailchimp Transactional) setting screen with red arrows pointing to setting and add API key.

A prompted screen shows your API Key, please copy this key and past it in Mailchimp Transactional connection.

Screenshot of Mailchimp transactional API key screen. it shows a prompted screen with a hidden API key and a red arrow pointing to it, and a Copy button.

Then, click on “Create app” button, voila! You have connected Mailchimp Transactional to Wiresk.

You can now use this connection in your Flows.

After linking Mailchimp Transactional to Wiresk, you can start creating your Flows.

How to create a Flow ↓
  • Select your Group, then on the Flow management screen click on “Create Flow”.
Animated image GIF, shows where to click to create a Flow in Wiresk. first select a group then click on create Flow.

A – Select the Trigger

Flows can be executed by multiple Triggers, depending on the desired workflow. For example, you could use scheduled Triggers with different recurrence rules alongside a Webhook Trigger for immediate, event-driven runs of the Flow. If you choose to “Run Once“, the Flow will execute using only one Trigger and its sample data.
  • On the new screen, name the Flow that you want to create.
  • Add your Triggers by clicking on the Wiresk 2025 05 02 at 15.00.40 Mailchimp Transactional - Connection next to “All Triggers”.
  • On the Trigger selection screen, search your app or select it from the list below the screen.
Screenshot of Wiresk Trigger setting screen. Red arrows shows that you can wether search your app in the search or or select it in the list below.
  • Select your preferred Trigger on the next screen and customize its settings. For Mailchimp Transactional, See the Triggers settings.

As mentioned in “How to connect your app to Wiresk” above, during your Trigger settings, you can create a new connection to your apps at this stage.

Check here for a detailed Tutorial step-by-step on how to create a Flow.

B – Add an HTTP Trigger to your Flow

An HTTP Trigger allows you to manually activate your Flows.

HTTP Trigger settings

  • Select the Wiresk 2025 05 02 at 15.00.40 Mailchimp Transactional - Connection next to “All Triggers”, to add a Trigger for testing your Flow,
  • Select the button “HTTP”.
Screenshot of Wiresk Trigger selection screen. Red arrow is pointing to Http button. Select that button to configure the Http Trigger.
  • Write a description and select your API key or create a new one.
Screenshot of the HTTP Trigger settings. Here you need to provide a description and select the API key.
  • Click on save. Now you can use your HTTP Trigger to Manually run your Flow.

C – Add a Method to your Flow

The Method will perform a specific task on a particular app or service you’ve connected to Wiresk like get info or send emails.

You can add at least 1 or multiple Methods for complex Flows (a maximum of 255 Methods).
  • On the Flow builder screen, click on the plus button (+) next to the Trigger icon.
Screenshot of Wiresk Flow Builder, showing Trigger icon and an arrow pointing to a plus button. This button is use to add Methods in Wiresk.
  • Search or scroll down to select your apps Methods, then configure it settings. For Mailchimp Transactional, See the Methods settings.
Screenshot of Wiresk flow builder. This screen shows the Methods selection panel. Search the app or select it in the list below the search.

D – Add Wiresk Tools to your Flow

If you want to build a complex Flow, Wiresk offers a selection of tools at your disposal. Refer to Wiresk’s Tools

To add Tools in your Flow, Follow the same step as adding the Methods.

  • On the Flow builder screen, click on the plus button (+) then just click on the “Tool” tab and select the Tool that you want to add.

How to configure your Mailchimp Transactional Triggers and Methods? Explore Mailchimp Transactional settings.

Learn more about Wiresk, explore our user guide.

If you need an integration that you cannot find in Wiresk, you can make a request to our team, and we will try our best to satisfy your needs.