Black Friday on Instagram: comment-to-DM campaigns that turn comments into sales
In 2026 Black Friday falls on Friday 27 November and Cyber Monday on 30 November. For most small brands on Instagram the hard part of that week is not getting attention. It is answering everyone who asks for the link before they lose interest, while your inbox fills faster than you can type.
Ask people to comment one word, send the offer to every commenter by DM within seconds, and keep the public reply short. The DM carries the link; the comment section carries the social proof.
Why comment-to-DM works better than "link in bio" in a sale week
"Link in bio" asks a buyer to leave the post, open your profile, find the link and then find the product. Each step loses people, and in a sale week they are scrolling past ten other offers. A comment-to-DM campaign removes the steps: someone comments SALE, and a message with the offer and a button lands in their DMs while they are still looking at your post.
It can also start a real conversation. The automatic reply to a comment is a single message, but the moment the person taps a button in it or writes back, Instagram lets you keep messaging them for the next 24 hours. That is the window in which a question like "does this come in black?" turns into an order, and it is why the DM should end with a button.
A four-post plan for the week
| When | Post | Keyword | What the DM sends |
|---|---|---|---|
| Mon 23 Nov | Teaser: "Our biggest sale starts Friday" | EARLY | A sign-up link for early access, or the sale date and time |
| Fri 27 Nov | Black Friday: the offer, the deadline, the best product | SALE | The discount code and a button to the sale page |
| Sun 29 Nov | Reminder: what is selling out, a customer photo | LAST | What is left in stock and the link |
| Mon 30 Nov | Cyber Monday: final hours, one extra item or bundle | CYBER | The Cyber Monday code and the time it ends |
A different keyword on each post is worth the small effort. It tells you which post actually drove clicks, and it stops a reminder post from re-sending yesterday's code to people who already used it.
Writing the post so people comment
- Put the instruction in the first line of the caption and on the image or video itself: "Comment SALE and I'll DM you the code." Most people read the image, not the caption.
- Pick a short, ordinary word. SALE and LINK beat a clever brand phrase that people misspell.
- Say what they get. "The code for 30% off" gets more comments than "more info".
- Add a reason to act now: an end time, a limited number, or a gift with the first orders.
Writing the DM so people buy
The DM has one job: get the tap. Keep it to three or four short lines, put the code in its own line so it is easy to copy, and finish with a button rather than a pasted URL. A message with buttons can hold 640 characters, which is more than enough.
Here's your Black Friday code 🎉
BLACK30
30% off everything until Monday midnight.
[Shop the sale]If you want to know who is ready to buy, add a quick question as a second step with two buttons, for example "For me" and "It's a gift". Each answer can send a different product list, and the tap itself keeps the conversation open.
The public reply
Replying under each comment shows new viewers that the DM really arrives, which earns more comments. Write three or four short variations ("Sent! Check your DMs", "Code's in your inbox") so the replies do not all look the same, and keep them free of links.
When a sale post goes viral
This is the week a post is most likely to get far more comments than usual. Instagram allows one private reply per comment and caps how many an account can send in an hour. A good tool does not drop the overflow: it queues every commenter and sends to each one as the cap allows, so a post with thousands of comments still reaches all of them, a little later for the last ones.
After the weekend
- Pause or end each campaign when its offer ends, so nobody receives an expired code in December.
- Look at which keyword got the most comments and the most button taps. That is your best post format for the next sale.
- Reuse the same campaign for Christmas and New Year with a new keyword and a new code.
Questions people ask about this
- When is Black Friday 2026?
- Black Friday is Friday 27 November 2026, the day after Thanksgiving in the US, and Cyber Monday is Monday 30 November 2026.
- Is it allowed to send automatic DMs to people who comment on Instagram?
- Yes, through Instagram's official messaging API. Instagram allows one private reply to each comment. If the person replies or taps a button in it, the business can keep messaging them for 24 hours after that.
- What keyword should I use for a Black Friday post?
- A short, common word that is easy to spell, such as SALE or DEAL, and a different one on each post so you can tell which post sold.
- What happens if thousands of people comment at once?
- Instagram caps how many private replies an account can send per hour. HookSend queues every commenter and sends to each one as the cap allows, so nobody is skipped.