Q4 Holiday Marketing Calendar: What to Send From Diwali to New Year

From mid-October to the first week of January, most online stores run more campaigns than in the rest of the year combined. Diwali, Black Friday, Cyber Monday, Christmas and New Year arrive one after another, and every brand is competing for the same inbox, phone and feed.

The stores that do well in this stretch are rarely the ones that send the most. They are the ones that planned what to send, to whom and when, weeks in advance. This guide gives you a phase-by-phase calendar you can copy, covering email, SMS, WhatsApp, social and site banners, plus the frequency limits and approval lead times that catch many teams out.

For margin maths, offer planning and platform checklists, read our BFCM 2026 ROI playbook. This post focuses on the sending schedule.

Before You Plan: Three Things to Lock In

1. Your key dates

• Diwali: early November this year. Check the exact date for your region and build the Diwali phase backwards from it.
• Black Friday: Friday 27 November 2026.
• Cyber Monday: Monday 30 November 2026.
• Christmas: Friday 25 December 2026, with shipping cut-offs set by your couriers in mid to late December.
• New Year: Friday 1 January 2027.

2. Your segments

Sending the same message to everyone is the fastest way to raise unsubscribes. Set up these segments in your email or CRM platform before October ends:

• VIPs: your top customers by spend or order count. They get early access, not just more emails.
• Recent buyers: ordered in the last 30–60 days. Lighter on promotions, heavier on cross-sell and gifting.
• Engaged non-buyers: opened or clicked recently but never ordered. Your best BFCM conversion opportunity.
• Lapsed customers: bought before but not in the last 6–12 months. One or two strong win-back offers, not daily sends.
• Unengaged subscribers: no opens or clicks for several months. Exclude them from most sends to protect deliverability.

3. Your approvals and sender setup

SMS and WhatsApp campaigns can't be written the night before. In India, promotional SMS must go through DLT: your business, sender ID (header) and every message template must be registered with an operator's DLT platform before you send. Template approval timing varies by operator and can take several days, and rejections for formatting or variable issues are common. Submit all your Q4 SMS templates by mid-October, with variables for offer, code and link so one template covers several campaigns.

WhatsApp Business messages sent outside a customer service window need Meta-approved templates. Approval is often quick, but templates can be rejected or re-categorised, so submit Diwali, BFCM and Christmas templates at least two weeks before each phase and keep a plain backup version ready.

For email, make sure your sending domain meets the Gmail and Yahoo bulk-sender requirements: SPF, DKIM and DMARC set up, plus one-click unsubscribe. Fix this in October, not on Black Friday morning.

The Q4 Calendar, Phase by Phase

Phase 1: Mid-October to Diwali week (warm-up and Diwali)

• Email: start with your Diwali gift guide and festive collections. Two to three emails a week to engaged subscribers is plenty. Read our guide on holiday gift guides that sell for structure.
• SMS and WhatsApp: one message announcing your Diwali offer, and one reminder in the final days before Diwali. Send only to opted-in customers, and within the time windows your provider allows for promotional SMS.
• Social: festive lookbooks, gifting ideas, behind-the-scenes packing content, and early delivery deadlines for Diwali orders.
• Site banners: "Order by [date] for delivery before Diwali" with a real date from your courier.

Use this phase to collect sign-ups for BFCM early access. A simple "Get first access to our Black Friday sale" form on the homepage builds a warm list for the next phase.

Phase 2: After Diwali to 26 November (BFCM build-up)

• Email: a short teaser series: what's coming, which categories, and when. Send VIPs and early-access subscribers a separate message with their access time.
• SMS and WhatsApp: hold back. One "save the date" to VIPs is enough. Save your SMS budget for the sale itself.
• Social: countdown posts, product previews and polls on what customers want discounted.
• Site banners: early-access sign-up and sale start date.

Many stores now start Black Friday offers in the week before. If you do, give VIPs and early-access subscribers a head start rather than discounting to everyone at once.

Phase 3: 27–30 November (Black Friday to Cyber Monday)

This is the one window where higher frequency is accepted by most subscribers. A typical structure:

• Black Friday morning: sale launch email to all engaged segments; SMS and WhatsApp to opted-in customers.
• Black Friday evening: a follow-up email only to people who didn't open or click the first one.
• Saturday and Sunday: one email a day focused on bestsellers, bundles or what is selling out.
• Cyber Monday: a Cyber Monday email in the morning and a "last hours" email in the evening; one final SMS or WhatsApp reminder.

Use scheduled discounts with start and end dates (Shopify discounts and WooCommerce scheduled sale prices both support this) so offers switch on and off without someone staying up at midnight. Update site banners on the same schedule.

Phase 4: 1–20 December (Christmas and shipping cut-offs)

• Email: gift guides by recipient and price, then shipping deadline reminders as each cut-off approaches. Two to three emails a week.
• SMS and WhatsApp: one message for your final standard shipping date, one for express. Customers usually welcome these because they're useful.
• Social: gifting content, unboxing, and clear deadline posts.
• Site banners: a shipping cut-off banner with real dates per region or country, updated as each date passes. If you ship internationally, those cut-offs come earlier; see selling globally from India in Q4.

Confirm every cut-off with your couriers and your warehouse before announcing it. A missed promised date costs more in support and refunds than the sale was worth.

Phase 5: 21 December to the first week of January (last-minute and New Year)

• Gift cards: once physical delivery isn't possible, switch your emails and banners to digital gift cards and store pickup if you offer it.
• Christmas and New Year greetings: one short, non-promotional message. It builds goodwill and costs nothing.
• New Year: a light end-of-season sale or "new year, new routine" angle for relevant products, sent to engaged segments only.
• Post-purchase: make sure Q4 buyers get delivery updates, how-to content and review requests. This sets up your January retention plan.

Sample Q4 Calendar

How Often Is Too Often?

There is no single safe number, but these rules keep most stores out of trouble:

• Email: two to three a week in normal Q4 weeks; up to one or two a day only during the BFCM weekend, and only to engaged subscribers.
• SMS: a handful of messages across the whole quarter. Each one should be a launch, a deadline or a last chance.
• WhatsApp: treat it like SMS. It feels personal, and customers can block or report you easily, which can affect your number's quality rating.
• Suppress recent buyers: if someone just bought, remove them from "last chance" messages for that product.
• Offer a lighter option: a "fewer emails this season" link in the footer saves subscribers who would otherwise unsubscribe.

Watch unsubscribe rates, spam complaints and SMS opt-outs after every send. If a send performs noticeably worse than your usual numbers, slow down for that segment.

Automate the Repetitive Parts

Campaigns get the attention, but automated flows often keep earning quietly through Q4. Before November, review and update:

• Welcome series, with your current seasonal offer.
• Abandoned cart, checkout and browse flows, with holiday delivery dates.
• Post-purchase and review request flows.
• Back-in-stock alerts for bestsellers that sell out during BFCM.

On Shopify, Shopify Flow can tag customers, notify your team when stock runs low, or trigger actions in other apps. Klaviyo, HubSpot and most email platforms let you build segments and flows that update automatically. For conversion fixes on the pages these messages send traffic to, see our Q4 conversion rate guide.

Your Q4 Calendar Checklist

• Key dates confirmed, including courier shipping cut-offs.
• VIP, recent buyer, engaged, lapsed and unengaged segments built.
• DLT SMS templates submitted by mid-October.
• WhatsApp templates submitted at least two weeks before each phase.
• SPF, DKIM, DMARC and one-click unsubscribe in place.
• Scheduled discounts and banners set with start and end dates.
• Automated flows updated with seasonal copy and delivery dates.
• Frequency limits agreed, and a person watching unsubscribes after each send.

Need Help Running Your Q4 Calendar?

EyeBroadband connects Shopify and WordPress stores to email platforms, CRMs, SMS and WhatsApp providers, and automates the flows that keep campaigns on schedule. Request a free store audit, see how we handle API integrations, or talk to our team before the Diwali rush.