SMS Automation

SMS automation covers two kinds of text messaging. One-way triggered messages: an appointment reminder 24 hours before a visit, a confirmation after a booking, a payment link after a quote. Two-way conversations: a prospect replies to a reminder asking to move to Thursday and an agent handles the reschedule. In an agent deployment SMS is one channel alongside web chat and WhatsApp, usually the one used for time-sensitive follow-up after a conversation that started elsewhere.

How it works. Triggered messages come from events: a booking created in the calendar, a lead captured on web chat, a missed call on the inbound line, a job status change in the CRM. A rule picks the template and the send time, respecting the recipient's time zone and quiet hours. Replies route to the agent, which reads the thread history and answers: confirm, reschedule, send directions, resend a payment link. Keywords such as STOP and HELP are handled by the platform before the agent sees them, and an opt-out is written back to the CRM so no rule sends again. Messages are plain text with a link where needed, kept short because long messages split into segments and cost more.

Why it matters for service businesses. No-shows are the most expensive routine problem in appointment-driven businesses, and a reminder with a one-tap reply cuts them in a way email does not. SMS is also the channel that reaches a lead who gave a phone number on a web form and never opened the follow-up email. The constraint is consent. In the United States, application-to-person SMS on standard 10-digit numbers requires 10DLC registration with carriers, and automated marketing texts require prior express written consent under the TCPA. In India, commercial SMS requires DLT registration of the sender and templates. Getting that wrong gets the number blocked.

Example. A physiotherapy clinic books a new patient through web chat on Tuesday. The system sends a confirmation text immediately, with the address and a line asking the patient to reply C to confirm or R to reschedule, and a reminder at 9 am the day before. The patient replies R and asks about Friday. The agent reads the appointment, checks Friday's availability on the clinic calendar, offers 10:30 and 2:15, books 2:15 on the patient's reply, updates the calendar, and sends a new confirmation. The front desk sees the change in the CRM without having made a call.

SMS automation vs WhatsApp automation. Both are message channels with consent rules, but the mechanics differ. WhatsApp requires Meta-approved templates for business-initiated messages outside the 24-hour window and supports rich media and buttons. SMS has no template approval but needs carrier registration, has a per-segment cost, and reaches any phone without an app. Many businesses use WhatsApp where customers already live on it and SMS for US customers and for one-tap confirmations.

What to measure. Delivery rate, reply rate on reminders, no-show rate before and after, opt-out rate per trigger, and the share of replies the agent resolved without a person. Rising opt-outs on one trigger mean the timing or frequency is wrong.

Botcadence chat agents run on SMS alongside web chat, WhatsApp, Instagram, Telegram, Slack and email, with each generated reply metered as one AI reply credit; see the SMS chatbot channel.