In brief: Post-festive marketing is the follow-up work a business does after a festival sale such as Diwali. It starts by sorting the people the campaign gathered into four groups: buyers, people who asked but did not buy, website visitors and people who only engaged. Each group gets its own next step: a thank-you and review request, a personal follow-up within the week, retargeting ads, or an invitation to follow. WhatsApp’s Business Messaging Policy allows contact only with people who gave their number and opted in. Meta’s guidelines say an uploaded customer list should include at least 1,000 customers, phone numbers must include a country code, and a list not updated in over 30 days is marked outdated. Kosmonk IT Pvt Ltd, a digital marketing agency in Ahmedabad, sets up customer lists, lookalike audiences and retargeting for brands.
The lights are packed away and the shop is quiet again. Somewhere on a laptop sits the real result of your Diwali campaign: a list of names and numbers. Post-festive marketing is what you do with that list in the weeks after the festival. Done well, it turns festive enquiries into sales, buyers into repeat customers, and one busy month into a steadier start to the new year.
Many businesses skip it, because the team is tired and the rush is over. The answer: sort the list into four groups, give each one a next step, and start with people who asked but did not buy. This guide shows how to sort the list and who you may contact. It then covers how to follow up, and how to use the list in your ads until March.
Key Takeaways
- Sort your festive list into four groups before you send anything.
- Contact people on WhatsApp only if they gave you their number and agreed to hear from you.
- Meta's guidelines say a customer list should include at least 1,000 customers.
- Ask buyers for a review once they have used what they bought.
What Is Post-Festive Marketing?
Post-festive marketing is the follow-up work you do after a big festival sale. You go back to the people your campaign reached, sort them by what they did, and give each group the right next step. It often costs less than finding new people, because these people already know your name.
The festive season brings in more than buyers. Your campaign also gathered people who asked a price on WhatsApp, filled in a form, or added something to the cart and left. Each of those is a warm lead. Our guide to festive season campaign planning covers the build-up to Diwali. This one starts the morning after.
The timing matters, because the festival is still fresh in people’s minds. Wait too long, and a competitor’s advertisement may take your place.
Who Is on Your Festive List?
Usually four kinds of people, and each one needs something different. First, people who bought. Second, people who asked but did not buy. Third, people who visited your website or shop page and left. Fourth, people who only liked, commented or watched. Put each name into one of these groups before you send a single message.
Pull every source into one sheet first, or into your CRM if you use one. A festive list is often spread across places like these:
- The billing software, for everyone who bought.
- The WhatsApp chats, for price questions and photos sent.
- The website form, for enquiries sent through your site.
- Instagram DMs and comments, for people who asked on a reel.
- The notebook at the counter, for walk-ins who left a number.
Add a column for the group and a column for what the person asked about. Add one more for how they agreed to hear from you, because the next section depends on it.
To take a made-up example, a furniture showroom in Bodakdev might end Diwali with 140 buyers. It might also have 85 people who asked about sofas on WhatsApp, and a few hundred website visitors. Each of those groups needs a different next step. The 85 enquiries are the most likely to buy soon, so they come first.
Which People Can You Contact After Diwali?
Only the people who gave you their details and agreed to hear from you. Having a number in your phone is not the same as permission. Before you message anyone, check how they reached you and what they agreed to.
WhatsApp is clear about this. Its Business Messaging Policy says you may only contact people if “they have given you their mobile phone number or username”. They must also have given “opt-in permission” to hear from you. It also says you “must respect all requests” to stop. So a buyer who agreed to get offers on WhatsApp can be messaged. A number copied from a friend’s group is not.
India’s data protection law, the Digital Personal Data Protection Act, 2023, adds its own consent rules. Our guide to WhatsApp marketing explains who you may contact on WhatsApp, and email needs the same care. Anyone who has not agreed to hear from you gets no messages at all.
How Should You Follow Up With People Who Did Not Buy?
Reply personally, within the week, and mention exactly what they asked about. A festive enquiry is usually about one thing, such as a three-seater sofa or a gold coin. A message that names it shows you remember them. A general “Happy Diwali, visit us again” does not.
Keep the message short and give one clear next step. You could share a photo of the item, say whether it is still in stock, and offer a time to visit. If they said the price was too high, suggest a smaller or simpler option.
Here is a made-up example of a good follow-up: “Hi Meera, you asked about the grey three-seater sofa during Diwali. It is back in stock, and we can hold one for you till Saturday. Would you like to see it this week?” It names the item, gives news and asks one easy question.
Send one follow-up, then wait. If there is no reply after a week, send one more with something new, such as fresh stock. After that, stop messaging and show them retargeting ads instead, which are ads aimed at people who already know you. Two unanswered messages are usually the sign to stop.
Record every reply in the sheet. Write down who bought, who said “maybe later” and who said no. The people who said “maybe later” are your list for January.
How Can Your Festive List Help Your Meta Ads?
You can upload it to Meta as a customer list and use it in two ways. You can show ads to those exact people, or you can ask Meta to find new people who look like them. Both start from the same sheet you just sorted. Upload only people whose details you collected with their permission.
Meta’s customer list guidelines set a few rules worth knowing. A list should be a CSV or TXT file and “include at least 1,000 customers”. Phone numbers “must include a country code”, so write 91 before every Indian number. Meta’s customer list help page also says “Meta hashes this information”. That means it turns the details into a code before using them.
The 1,000 figure matters for a small business. If you have only a few hundred buyers, add your best older customers until you reach it. Meta’s help page on lookalike audiences adds that “an audience made from your best customers” may work better, depending on your goals. If you still fall short, put your effort into direct follow-up first.
Here is how the two uses compare:
Customer lists also go stale over time. Meta marks a list as outdated when it “hasn’t been updated in over 30 days”, which may hurt delivery. Updating the same list every month, for as long as you advertise to it, keeps the audience accurate and saves rebuilding it from scratch. Our guide to retargeting done properly covers how long people should stay on a list and who to leave out.
The Right Time to Ask Festive Buyers for a Review
After they have used what they bought, while the purchase is still fresh. For a sweet box, that is a day or two. For a sofa or a phone, it is about a week after delivery. Asking on the day of purchase is often too early, and asking in January is usually too late.
Many festive orders arrive over the following weeks, so most requests go out in late November and December. Keep each request to one line, with your review link. Our guide on how to get Google reviews covers what Google allows you to ask and when people say yes most often.
What Should Post-Festive Marketing Look Like Until March?
It should run in three stages, from November to March. Clear the warm enquiries first, while people still remember you. Then ask for reviews and keep the list fresh through December. From January to March, return to the people who said later, and use what you learned to plan the next big sale.
January is a good month to look back, before the next big sale comes round. Bring your sheet to your planning meeting. It shows which products sold, which enquiries came back and which channel brought the best buyers.
Write a one-page note of what worked, what ran out and which enquiries were never answered. Next September, when the festive plan starts again, that page saves a week of guessing. Keep it with the sheet, so a new team member can find both.
If you would like help running the ads side, our Meta ads team sets up customer lists, lookalike audiences and retargeting for brands across Ahmedabad.
Where to Start
Remember one thing: in post-festive marketing, the people who asked during Diwali but did not buy are your quickest sales. They already know you, and they told you what they wanted. A short, personal reply is often all it takes to bring them back.
Today, open one sheet and copy in every festive enquiry from WhatsApp, Instagram DMs, your forms and your counter book. Mark each one with what they asked about. Then start replying, newest first, so that every one gets an answer by the end of the week.
If you would like help with the ads side, talk to our team. We will tell you what is worth doing first.
Frequently Asked Questions
What is post-festive marketing?
It is the follow-up work after a festival sale such as Diwali. You sort the buyers, enquiries and visitors your campaign gathered, then thank, follow up, remarket and ask for reviews. It often costs less than finding new customers, because these people already know you.
Can I send WhatsApp offers to all my Diwali customers?
Only to those who gave you their number and agreed to hear from you. WhatsApp’s Business Messaging Policy requires opt-in permission, and you must stop when someone asks you to.
How many customers do I need for a Meta customer list?
Meta’s guidelines say a customer list should include at least 1,000 customers. If you have fewer, combine your festive buyers with older customers, and add the country code to every phone number.
How soon should I follow up a festive enquiry?
Within the week, while they still remember asking. Name the item they wanted and give one clear next step. If there is no reply, send one more message a week later, then move them to your ads audience.
When should I ask festive buyers for a review?
Once they have used what they bought. For sweets and other food, that is a day or two. For bigger items like furniture or electronics, wait about a week after delivery.
