SMS Automation and Triggers

Automate with AI2 min readUpdated 2026-03-12

SMS Automation and Triggers

JustCall's SMS automation lets you send messages automatically based on events — missed calls, new contacts, appointment reminders, and more. Build rules using a trigger-condition-action framework without writing code.

Available on: Pro plan and above


How Automation Works

Every automation rule has three parts:

  1. Trigger — The event that starts the automation (e.g., missed call, new contact added, form submission).
  2. Condition (optional) — A filter that must be true for the action to execute (e.g., only for contacts tagged "VIP," only during business hours).
  3. Action — What happens when the trigger fires and conditions are met (e.g., send SMS, add tag, update CRM).

Common SMS Automations

TriggerActionUse Case
Missed callSend SMS"Sorry we missed your call. We'll call you back within 30 minutes."
New contact addedSend welcome SMSOnboarding message with next steps
Appointment createdSend reminder SMS24-hour and 1-hour reminders
Call completedSend follow-up SMSPost-call survey or confirmation
Contact taggedSend targeted SMSNurture sequence for specific segments

Create an Automation

  1. Go to Automations in the left sidebar.
  2. Click Create Automation.
  3. Select a Trigger from the dropdown.
  4. Add Conditions if needed (tags, teams, numbers, time).
  5. Set the Action to "Send SMS."
  6. Compose the message — use dynamic variables like {{contact_name}}, {{agent_name}}, {{call_duration}}.
  7. Click Save and toggle the automation on.

Dynamic Variables

Insert personalized data into automated messages:

VariableInserts
{{contact_name}}Contact's name from your address book
{{agent_name}}Name of the assigned agent
{{company_name}}Your company name
{{call_duration}}Duration of the triggering call
{{missed_call_time}}Time of the missed call

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