How to plan SMS and push for holiday promotions 

Plan backward from Friday, November 27: grow consented lists now, lock a week-by-week calendar, give each channel one job, cap frequency across channels, and set quiet hours before the first send.

Today is Tuesday, October 20, which leaves 38 days until Black Friday. That's enough time to finish carrier registration, add opt-in points, and test every journey, provided you start this week.

Key takeaways

• SMS carries time-boxed offers, push carries moments tied to your app, and email carries the story and the fine print.
• Consent and sender registration come first, because carriers and regulators decide whether a text reaches anyone.
• Set one frequency cap per customer across channels, then let critical messages override it.
• Treat 8:00 am to 9:00 pm in the recipient's local time zone as your default sending window for promotional texts.
• Track opt-outs and push disables right next to revenue.

The National Retail Federation (NRF) forecasts that November and December retail sales will grow 4.2% over 2025, to $1.013 trillion. More demand means more brands competing for the same lock screen and the same inbox.

Customer.io's 2026 customer messaging trends data shows how e-commerce and marketplace teams respond during peak periods:

• 65% significantly increase send frequency.
• 52% send segment-specific offers.
• 48% run countdown or urgency campaigns.
• 42% give loyal customers early access.
• 38% run a coordinated email, SMS, and push blitz.

Volume climbs fast. Among those teams, 35% roughly double message volume during peaks, 18% increase it by 101% to 200%, and 8% go beyond 200%. The survey drew 750+ respondents, and e-commerce and marketplace teams made up about one in seven, so read these figures as directional.

Adoption keeps growing. In the same survey, 36% of marketers use SMS and 30% use mobile push. Customer.io's mobile-messaging playbook adds that nearly 7 in 10 of the 124 teams surveyed treat mobile as a primary or co-primary channel, and 94.6% say mobile-centric messaging outperforms an email-only approach (self-reported).

If your volume is about to double, your frequency rules need to be in place before the first send.

Finish registration, builds, and QA by Friday, November 20, then send in four phases: teaser and early access, Black Friday weekend, Cyber Monday, and follow-up.

Read the chart from the top. Foundation work runs first, builds and QA finish by Friday, November 20, and sends start Saturday, November 21. Treat Thanksgiving Day, Thursday, November 26, as a lighter day and let critical messages such as order confirmations carry it.

• Teaser and early access (Saturday, November 21 to Wednesday, November 25): Text your loyalty segment first with early access, and email everyone else a gift guide.
• Black Friday weekend (Friday, November 27 to Sunday, November 29): Launch the offer by SMS, run behavioral push for saved items and carts, and keep every send inside your caps.
• Cyber Monday (Monday, November 30): Reach people who clicked but didn't buy with one reminder, staggered away from your email send.
• Follow-up (from Tuesday, December 1): Send thank-you messages, welcome new SMS subscribers, and review opt-outs and push disables by message.

Finish registration and consent first, write short single-offer texts second, and schedule every send inside a legal window third.

Carriers approve your sender before you send. Check out our SMS setup docs to learn what every provider requires: an updated privacy policy, updated terms and conditions, and a defined opt-in and opt-out flow. You also describe your SMS use cases when you register as a sender. Since July 30, 2026, you can connect Twilio, Sinch, Infobip, Vonage, or Bird to your workspace, or ask Customer.io to set up sending if you're based in the US or Canada and message people there. Confirm your provider's registration timeline this week.

To grow the list, check out the SMS compliance guide, which names four consent methods: keyword texts, sign-up widgets, web forms, and paper forms. Whichever you use, tell subscribers your company name, what you'll send, how often, that message and data rates may apply, and where to find your terms and privacy policy. Consent covers only the type of message the person agreed to, so a signup for order updates doesn't cover promotions.

• Budget your characters. SMS messages top out at 160 characters, and opt-out language leaves roughly 140 for your offer.
• Turn on smart encoding and link shortening. Smart encoding is on by default and swaps special characters for GSM 7-bit equivalents, so a stray curly quote doesn't drop your limit to 70 characters. Link shortening is off by default; enable it in your delivery settings so tracked links don't eat your budget.
• Send text-only. Customer.io's BFCM email and omnichannel panel found that short text-only messages consistently drive higher engagement than image-based MMS.
• Lead with dollars. The same panel recommends showing savings in dollars. Test that in your texts.
• Use one offer, one code, one tracked link. A short code and a tracked link show you who clicked and who redeemed.
• Keep one sender. Text from the same number every time and name your brand in each message.

Our panel flagged a luggage brand whose "VIP early access" email was sent to everyone, undercutting the promise. That's why we suggest sending early-access texts only to a real loyalty segment, such as repeat buyers or your top spenders by lifetime value.

Federal TCPA rules prohibit telephone solicitations before 8 am or after 9 pm at the recipient's location, according to law firm Squire Patton Boggs. Plaintiffs have filed class actions over late-night marketing texts. A Delaware federal court ruled on April 30, 2026, that texts sent with consent weren't telephone solicitations in that case, yet it is a single decision, and the FCC hasn't acted on the pending industry petition. Use 8:00 am to 9:00 pm in each recipient's local time zone as your default, and ask your counsel about stricter state rules.

In Customer.io, frequency caps evaluate a sliding window rather than the time of day, so they won't block overnight sends. Add a "wait until" step in the journey to hold texts inside your window.

People reply to texts, and Customer.io's SMS tips recommend answering quickly and setting an automated after-hours reply. Alphanumeric sender IDs are one-way, so STOP replies never reach you, and many countries restrict them. If you message internationally, give recipients another way to opt out.

Earn permission, tie each push to something the person did or is about to do, and label urgency honestly.

Apple's Managing notifications guidance says to send marketing or promotional notifications only after people explicitly agree. It also asks you to describe the kinds of messages you plan to send, give a clear way to opt in or out, and offer an in-app settings screen where people can change their choice. Apple's rule for holiday sends is firm: never use the Time Sensitive interruption level for a marketing notification, because that level can break through Focus and scheduled delivery.

In our 2026 customer messaging report, we noted that mobile push has higher opt-in rates and better engagement than web push, where browsers make permission requests more prominent and users are more skeptical.

The same report says the best push notifications respond to what someone just did or didn't do, and that push has the shortest shelf life of any channel. That makes it a fit for moments that need an answer now. Holiday triggers worth building before November 20:

• Cart or browse abandonment on a gift list
• Back in stock for an item someone saved
• Price drop on a wishlist item
• Early access to a drop for a loyalty tier
• Order shipped, out for delivery, or ready for pickup

Apple's Notifications guidance adds two copy rules: keep each notification concise, and leave sensitive or personal details out, because you can't predict who will see the lock screen.

Customer.io's Summer 2026 release added three features that suit holiday programs:

• Geofencing triggers a journey when a customer enters or leaves a place, such as a store. Pickup reminders are a natural holiday use. It's mobile-only, needs location permission, and sits on Premium and Enterprise plans.
• Live Activities and Live Updates keep delivery tracking on the lock screen. Customer.io notes they don't need the same opt-in prompt as standard push. They're also Premium and Enterprise.
• The notification inbox gives a message a persistent home in your app, and you can store a copy of any push there. A multi-day offer then stays reachable after the banner disappears. The recap lists the inbox as available on all plans.

Apple advises against sending multiple notifications for the same thing, even when someone hasn't responded, because people may turn off all notifications from your app. For each offer, send one push, then move reminders to email or SMS.

Give each channel one job, then cap promotional messages per customer across all channels.

This split follows Customer.io's guidance in the BFCM panel recap: use SMS for urgency, reach active users with in-app messages, and stagger SMS and email sends so each touchpoint gets seen. The 2026 report (a free download) points SMS toward cart abandonment, shipping updates, and limited-time offers.

The frequency caps guide recommends thinking in customer caps rather than email caps or SMS caps, because a customer experiences one brand asking for attention. It also sorts messages by priority. Critical messages such as password resets and payment confirmations don't count toward the cap. Helpful and promotional messages do.

Here's how that works in the product, based on our message frequency limits docs, updated October 16, 2026:

1. Create limits in workspace settings. You can set them for email, SMS, push, and webhooks. By default no workflow counts toward a limit, so choose which automations and broadcasts do.
2. Combine shared and channel limits. The docs' example pairs a shared limit of 3 emails and texts per week with an email limit of 1 per week, so a person gets up to 3 texts and no more than 1 email.
3. Override at the message level. A transactional text can be set to skip the limit entirely.
4. Add retry windows to automations. A capped message can wait up to 48 hours for an open slot instead of landing as undeliverable. Keep the window shorter than the offer's life so nobody gets an expired code.
5. Cover in-app and inbox separately. Limits don't apply to those channels, so use expiration dates and page rules.

The guide's example thresholds are three marketing emails per week, one promotional SMS every 7 days, and two push notifications per day, and it says the right numbers depend on your audience. Peak season justifies higher numbers. Choose them now, write them down, and review them against the warning signs the guide lists: falling opens and clicks, rising unsubscribes and SMS opt-outs, higher push disable rates, and growing spam complaints.

Abandoned carts deserve their own sequence. Among e-commerce and marketplace respondents in Customer.io's survey data, 58% say a multi-message sequence over several days is their most effective approach, and 38% pair email with SMS.

Confirm consent, opt-out handling, sending hours, and content rules before the first send. This checklist is educational and focuses on US rules, so review it with your legal team.

• Capture express consent with the required disclosures. Share your company name, what you'll send, how often, that message and data rates may apply, and where your terms and privacy policy live.
• Keep consent types separate. Promotional consent and informational consent are different permissions.
• Send a confirmation text. Include your company name, expected frequency, a rates notice, and simple opt-out instructions.
• Confirm opt-out keywords work. Customer.io marks a person as opted out of that sender when they text STOP, CANCEL, or UNSUBSCRIBE, and START or UNSTOP opts them back in (learn more in our opt-out docs).
• Review the FCC's October 1, 2026 consent revocation order. Per Squire Patton Boggs, a revocation made in response to a telemarketing text still covers all future robocalls and robotexts from you that contain an advertisement or constitute telemarketing. Callers may now designate an exclusive revocation method if they disclose it in the text. The order takes effect 30 days after Federal Register publication, which hadn't happened when that article ran. A further notice proposes shortening the 10-business-day deadline for honoring requests and requiring two-way texting.
• Set your sending window. Default to 8:00 am to 9:00 pm in each recipient's local time zone and check stricter state rules with counsel.
• Screen content for prohibited topics. Carriers can block numbers that send content about sex, hate, alcohol, firearms, or tobacco, and the Customer.io guide lists further restricted categories.
• Get push permission before any promotion. Offer an in-app settings screen, and never mark a marketing push as Time Sensitive.
• Offer channel preferences. Customer.io's subscription center lets people pick channels as well as topics, so someone who's tired of texts can stay on email instead of leaving entirely.

Track revenue and list health side by side, and keep a holdout group so you can see what the messages added.

Marketers most often rank conversion rates (66%) and click-through rates (51%) among their top three success metrics. Revenue attribution (34%) and retention or churn rates (32%) follow. Build a holiday scorecard with both kinds:

• Revenue signals: conversions and revenue per message, plus code redemptions from each SMS and push.
• List health signals: opt-out rate per SMS send, push disable rate, unsubscribes, and spam complaints.
• Cap signals: messages recorded as Undeliverable because a person hit a frequency limit, per the message limits docs. A high count says your cap is stricter than your calendar.
• Holdout comparison: a small random group that skips promotional texts. Compare their conversion and opt-out rates with the group that received them.

Customer.io records sent, delivered, bounced, clicked, and converted for SMS no matter which provider delivers the message, and you can send those metrics to reporting webhooks or a data warehouse (SMS docs).

Our survey shows 25% of e-commerce and marketplace teams run post-purchase thank-you sequences at peak, and 28% send gift guides. Build both before November 27. Then add a welcome text for every new SMS subscriber you gained during the promotion, restating how often you'll text. Review opt-outs by message and adjust your caps for January before you plan the next campaign.

Start this week. Black Friday falls on Friday, November 27, 2026, which is 38 days after Tuesday, October 20. Carrier registration, opt-in growth, and journey testing all need lead time, so launch opt-in prompts now and freeze your builds by Friday, November 20.

Use SMS for time-boxed offers and last-chance reminders, and push for behavioral moments tied to your app, such as back-in-stock alerts or order updates. Email carries the story and the fine print. Send each push once, then move reminders to another channel.

Need help determining the best time to send? We've got you covered.

No single number fits every audience. Customer.io's frequency caps guide gives example thresholds of three marketing emails per week, one promotional SMS every seven days, and two push notifications per day, then tunes them to engagement. Set a peak cap per customer across channels before launch, and watch opt-outs and push disables.

Federal TCPA rules prohibit telephone solicitations before 8 am or after 9 pm at the recipient's location. A Delaware federal court ruled in April 2026 that consented texts weren't solicitations in that case, but one decision doesn't settle the question. Keep promotional texts between 8:00 am and 9:00 pm local time.

On Apple platforms, yes. Apple's guidelines require explicit permission before marketing or promotional notifications, an in-app settings screen for changing that choice, and no use of the Time Sensitive level for marketing. Describe what you'll send when you ask for permission.

No. Customer.io frequency caps evaluate a sliding window and ignore the time of day. To keep texts inside your sending hours, add a wait until step to the journey.

On October 1, 2026, the FCC let callers limit a revocation of consent for informational texts to the category the person addressed. Revocations tied to telemarketing still cover all future advertising robocalls and robotexts from that caller. Callers can now designate an exclusive revocation method if they disclose it. The order takes effect 30 days after Federal Register publication.