SMS automation software

SMS automation software: scheduled text campaigns, keyword auto-replies, and quiet-hours enforcement.

This is the text message automation most senders actually use. You can schedule tomorrow's message tonight, set the keyword "HOURS" to reply automatically with your business hours, and let the platform hold each message until the recipient's local quiet-hours window opens. There is no flowchart of decision rules to draw or maintain.

Open annual planner notebook, the kind of long-view schedule SMS automation runs on

01: Scheduled campaigns

Scheduled SMS campaigns: queue tomorrow's text-message broadcast tonight.

Build the message today, pick a date and time, and the platform sends it on schedule. Delivery follows each recipient's time zone, so a 10 a.m. send does not arrive at 7 a.m. for someone three zones west.

  • Schedule days or weeks in advance
  • Delivery based on each recipient's time zone
  • Edit or cancel any time before the message sends
  • Same review screen whether immediate or scheduled
SMS automation: campaign composer with scheduled-send option and time-zone-aware delivery

02: Keywords and auto-response

SMS keyword auto-responders: inbound trigger words that send the right reply.

Set up keywords such as HOURS, INFO, VOTE, DONATE, or RSVP. When a contact texts one of them, the platform sends the reply you wrote and can also tag the contact or add them to a list. Keyword auto-response is a $20/mo add-on.

  • Unlimited inbound keywords with custom replies (each reply sent costs one SMS credit, like any other message)
  • Case-insensitive matching
  • Tag the sender or add them to a list when a keyword matches
  • Works alongside STOP / HELP / UNSUBSCRIBE handling
  • Add-on $20/mo
SMS keyword automation: contact tagging showing keyword-driven list additions

03: Always-on automation

Always-on SMS automation: opt-outs, quiet hours, and recipient filtering.

We honor STOP, HELP, and UNSUBSCRIBE across the whole platform, enforce quiet-hours windows in each recipient's time zone, and remove opt-outs when each message sends. These protections are always on, so there is nothing for you to turn on.

  • Platform-wide STOP / HELP / UNSUBSCRIBE honoring
  • Automatic opt-out confirmation replies
  • Quiet hours enforced by each recipient's time zone
  • Opt-outs removed from the recipient count when the message sends
Open planner book and pen on a desk: scheduling SMS automation runs and quiet-hour windows

How SMS automation runs

Four SMS automation features most senders set up first.

These are the four kinds of automation most senders need, and none of them requires learning a flowchart tool first.

01

Schedule

Build a message now and schedule it days or weeks ahead. You can cancel it any time before it sends.

02

Keyword reply

Choose a word and the reply it triggers. You can also tag the sender or add them to a list.

03

Opt-out

We honor STOP, UNSUBSCRIBE and the other opt-out words immediately, send a confirmation, and remove the contact from future campaigns. A HELP reply gets an automatic message with your business name, how to reach you and how to stop.

04

Quiet hours

We automatically hold each message until the recipient's local sending window opens, so there is nothing you have to remember.

SMS automation use cases

SMS automation use cases for political campaigns and direct-to-customer businesses.

Political operations

Political SMS automation: scheduled GOTV pushes and keyword volunteer signups.

  • GOTVSchedule get-out-the-vote polling-location reminders for election morning
  • RSVPText RSVP to confirm a town hall seat
  • VOLUNTEERText VOLUNTEER to join the canvass list
  • DONATEText DONATE for the current donation link
Business marketing

Business SMS automation: hours auto-replies, booking reminders, and scheduled flash sales.

  • HOURSAuto-reply with current open hours
  • APPOINTMENTSSchedule reminders 24 hours ahead with "reply C / R"
  • SALESSchedule a flash sale for Friday at 4 p.m.
  • WELCOMEAuto-reply when someone texts JOIN to opt in

SMS automation FAQ

SMS automation FAQ: what to set up first and what's included.

Are scheduled campaigns and quiet hours included, or add-ons?

Scheduled campaigns and quiet-hours enforcement are included on every plan, including pay-as-you-go. Keyword auto-response is a $20/mo add-on. Opt-out handling is always on and cannot be turned off.

What happens if a scheduled send would arrive outside quiet hours?

We hold the affected recipients until their local window opens, then deliver to them. The rest of the list goes out on schedule, so no one gets a text at 3 a.m.

Can I cancel a scheduled send after I've built it?

Yes, up until the moment it sends. You can edit the message, change the recipients or the time, or cancel it entirely.

How many keywords can I set up?

The keyword add-on includes unlimited keywords. Common ones are HOURS, INFO, VOTE, DONATE, RSVP, and JOIN, and matching is case-insensitive. The number of keywords you can define is unlimited; each auto-reply the platform actually sends costs one SMS credit per segment, the same as any outbound message.

Does the platform do AI replies?

Keyword auto-response handles replies to specific trigger words. For open-ended conversations on your website, Alma (the website chatbot in the CNX Suite) is a separate product that is already available.

What is SMS automation?

In practice, SMS automation means three things: (1) scheduled campaigns, queueing a message to send at a future time, optionally repeating, (2) keyword auto-responses, replying automatically when someone texts a trigger word (HOURS, JOIN, INFO), and (3) quiet-hour enforcement, holding sends until each recipient's local 8 a.m. to 9 p.m. window. CampaignCNX+ handles all three. It does not include flowchart-style "if-this-then-that" drip builders; in practice, most senders stop using them.

Can I automate SMS replies?

Yes, through the keyword add-on. Set up triggers like HOURS, INFO, JOIN, DONATE, VOLUNTEER, and the platform sends the reply you set up as soon as a contact texts the keyword. Matching is case-insensitive. Messages that don't match a keyword go to the two-way inbox for a person to answer.

Do you have drip campaigns?

We don't offer a dedicated drip builder (a tool for automated message sequences). Instead, you can schedule a sequence of campaigns to a tagged audience at the dates you actually want them to land (a welcome message on day 0, a check-in on day 7, a re-engagement on day 30) without drawing a flowchart. For most programs, this is faster to set up and easier to review than a flowchart tool. For AI-assisted follow-up that adapts to each person, Alma in the CNX Suite is the right tool.

What gets automated and what doesn't?

The platform automates opt-outs, quiet hours, keyword replies, scheduled sends, working out each recipient's time zone, and pacing sends to meet carrier rules. It doesn't automate (and shouldn't) the actual message wording, the choice of audience, the decision about when to send, or the response to anything unclear in the two-way inbox. Those decisions stay with you.

Related reading

Start sending

Start your SMS automation program today.

Start with a toll-free number. Purchase a verified phone number, schedule your first SMS batch, and set up a keyword auto-reply. All of it goes live once the phone carriers verify your number, usually in about three business days. For larger automated programs, 10DLC carrier registration (for a registered local number) is the recommended long-term path. We submit it at the same time, and you can send from your toll-free number while the carriers review it.

Fastest start
Toll-free, about 3 business days
Onboarding
Real person, not a chatbot
Free trial
100 free SMS, number $5 a month