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The Doorbell Button (Trigger)

Every big show has an opening curtain! In Mailofly Automations, that opening curtain is The Doorbell Button. Your automation sleeps peacefully until someone rings the doorbell. The moment the bell chimes, the automation leaps out of bed, opens the door, and starts running its steps!

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Setting Up Your Doorbell

Click on the top Trigger block on your canvas to open its side drawer:

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1. Pick the Sound (Signal Name)

  • Select an existing signal from your dropdown menu (like user.signup or order.placed).
  • Or type in a brand-new signal name and press Enter to invent it instantly!

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2. Check the Goodie Backpack (Expected Properties)

Signals can carry backpacks full of helpful details. In your trigger setup, you can list what items you expect:
  • first_name (Words / String) — like “Maya”
  • items_in_cart (Count / Number) — like 3
  • is_pro (True/False / Boolean) — like true
🎁 Superpower: You can sprinkle any backpack item into your emails using magic tags like {{payload.first_name}}, or test them in Quiz Forks (Conditions)!

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How People Enter the Front Door

Whenever you shout a signal into the walkie-talkie from your app’s code, you must include an identifier:
  • By Email Address: "email": "maya@example.com"
  • By Contact ID: "contact_id": "cont_992182"
Mailofly will automatically find that friend in your audience (or create a brand-new contact card for them if it’s their very first visit) and send them through the flow!

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Ringing the Bell for Practice (Test Dialog)

You don’t need to write code just to see if your doorbell works!
  1. Click the Test Automation button at the top of your screen.
  2. Type in your own email address.
  3. Fill in funny test values for the backpack (e.g. first_name = "Super Maya").
  4. Click Run Test!
  5. Watch the cards light up on your canvas and check your inbox!

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