Black Friday is the most competitive day in the email marketing calendar. Your customers are getting 40, 50, sometimes 80 promotional emails on Black Friday morning. Most of those emails open with "BLACK FRIDAY SALE — UP TO 50% OFF" in the subject line. They are indistinguishable. They compete on discount size alone. They are forgettable.

The merchants who win on Black Friday email are running a sequence that starts weeks before the day itself, segments their list to give their best customers early access, and carries revenue through to Cyber Monday and beyond. This is that sequence.

Why does a sequence outperform a single send?

Klaviyo's BFCM data consistently shows that merchants who run 4 or more emails across the BFCM weekend generate 3 to 5 times more email revenue than merchants who send a single launch email. The mechanism is reach: not everyone opens every email, so each additional send in the sequence captures customers who missed the previous one.

The counter-concern is fatigue: will customers unsubscribe if you send too many emails? In practice, unsubscribe rates during BFCM are lower than normal. Customers are in a purchasing mindset. They expect promotional content. The risk is not sending too much; it is sending content that feels irrelevant or identical to the previous email. Each email in the sequence should have a distinct hook, not just the same offer resent.

What does the full BFCM email sequence look like?

Email 1: The teaser (2 weeks before Black Friday)

Subject line approach: curiosity over announcement. "Something we have been planning for a while..." or "Before everyone else finds out..." Do not reveal the full offer. The goal is to generate anticipation and get subscribers to look out for your BFCM emails.

Content: tease the scale of your offer (not the specific percentages), remind them why your products are worth their Black Friday budget, and give them one action: add themselves to your VIP early access list if they want to shop before everyone else.

A VIP early access opt-in in the teaser email does two things. It builds a pre-qualified segment of high-intent buyers you can target with early access. It also creates a confirmation email, which generates an additional touchpoint and a further opportunity to build anticipation.

Email 2: VIP early access (48 to 72 hours before Black Friday)

This email goes to your VIP segment only: your loyalty programme members, your highest-spend customers (top 20% by LTV), and anyone who opted in from your teaser email.

Subject line: make the exclusivity explicit. "Your early access to our Black Friday sale" or "You're in: Black Friday opens for you now." Customers who have been told they are getting something before everyone else feel genuinely valued. The open rate on VIP early access emails is typically 50 to 60%.

Content: the full offer, the discount code or automatic discount, and a clear deadline: early access ends Thursday night, then the sale opens to everyone.

Email 3: Launch day email (Black Friday morning, send 7am to 8am)

This is your broadest send: your full segmented list, excluding VIP early access customers who have already received their email (suppress anyone who clicked in the previous 72 hours to avoid over-sending to engaged buyers).

Subject line strategy for Black Friday morning: you are competing with dozens of other brands. Two approaches that stand out:

Specificity over superlatives: "25% off everything. No exceptions." performs better than "MASSIVE BLACK FRIDAY SALE." Specificity signals confidence.
Curiosity and personal tone: "We almost did not do this" or "Honestly, this is the best deal we have ever offered" can break through when every other brand is shouting.

Include a countdown timer for the sale end date. Most email platforms (Klaviyo, Mailchimp) support live countdown timers that render in the email and create genuine urgency.

Email 4: Day-two reminder (Saturday or Sunday)

Do not assume everyone saw your launch email. Open rates on Black Friday launch emails average 25 to 30%, meaning 70% of your list did not open it. Email 4 exists for those people.

Do not resend the same email. Change the subject line and the opening copy. Acknowledge the ongoing sale without making it feel like a copy-paste. "Still going: 25% off until midnight Sunday" is enough. Change the hero image too: a different product or a different visual angle signals that this is a fresh email.

Email 5: Cyber Monday (Monday morning, send 7am to 9am)

See the dedicated Cyber Monday post for the full strategy, but from an email sequencing perspective: Cyber Monday gets its own distinct email with its own offer hook. Do not simply extend your Black Friday email. Cyber Monday is a separate commercial event with its own consumer psychology.

Email 6: Wind-down (Monday evening or Tuesday morning)

"Last chance" is a legitimate email when it is genuinely the last chance. If your BFCM sale ends Tuesday at midnight, send an email on Tuesday morning with a hard deadline. Customers who have been thinking about purchasing but procrastinating need one final push.

Subject line: "Today's the last day. Just in case."

After this, go quiet. Your email list has received a lot from you in 5 to 7 days. The two weeks between Cyber Monday and your first Christmas campaign email should be low-frequency (one or zero emails) to let inboxes and engagement scores recover.

How do you handle abandoned cart flows during BFCM?

Your standard abandoned cart flow (trigger: 1 hour after abandonment) needs adjustment during BFCM. The standard window is too slow when your sale ends in 48 hours.

For BFCM, shorten your first abandoned cart trigger to 30 minutes. Urgency matters more during a time-limited sale. Add sale-end urgency to the copy: "Your cart is saved, but our BFCM discount ends tonight."

Suppress customers who have already purchased from your abandoned cart flow during this period. There is no point sending an abandoned cart email to someone who completed a purchase earlier that day.

After the sale ends, revert your abandoned cart trigger back to 1 hour.

How do you measure BFCM email performance?

Track these figures for your full BFCM email programme:

Metric	What to measure	Benchmark
Email revenue as % of total BFCM revenue	How much of your Black Friday weekend revenue was driven by email	35 to 50% for well-managed lists
Revenue per recipient by email	Which emails in the sequence drove the most revenue per send	Compare across sequence
Open rate by email	Which subject lines broke through the crowded inbox	VIP emails: 50%+; broadcast: 25 to 35%
Unsubscribe rate	Whether frequency damaged your list	Under 0.5% per email
Abandoned cart recovery rate	Whether shortened BFCM trigger improved cart recovery	Compare to standard rate

After BFCM, run a retrospective: which email in the sequence generated the most revenue? Which subject lines had the best open rates? Which offer drove the most conversions? Use this data to brief next year's BFCM sequence better.

Key actions to take now

Build your BFCM email sequence in Klaviyo now (in draft). Map all six emails with planned send dates before the planning gets crowded out by November execution.
Create your VIP early access segment in Klaviyo: top 20% of customers by LTV plus loyalty programme members.
Write two to three subject line options for each email and A/B test the top two on your launch day email (Klaviyo handles this natively).
Adjust your abandoned cart flow trigger to 30 minutes for the BFCM window. Set a calendar reminder to revert it after Cyber Monday.
Add a countdown timer to your Black Friday launch email using Klaviyo's native timer block or Sendtric (free).
Set a post-BFCM review date in November to analyse which emails performed best and document for next year.

Frequently Asked Questions

Should I offer the same discount in my VIP early access email as in my general list email? Yes. Your VIP customers are not getting a better price: they are getting early access. The exclusivity is the access itself, not an additional discount. Offering VIPs a deeper discount than your general list creates complexity and can erode your margins significantly if your VIP list is large.

What if I do not want to do a percentage discount for BFCM? Not all brands should discount. For premium or handmade brands, a percentage-off sale can damage brand perception. Alternatives: free shipping above a threshold, a free gift with orders over £X, bundle offers, or exclusive product launches available only during BFCM. These create BFCM momentum without devaluing your pricing.

How do I avoid my BFCM emails going to spam? Warm up your list before BFCM with regular sends in October and early November. Sending a high volume of emails from a list that has been quiet for months is a spam risk. Also verify your sending domain authentication (SPF, DKIM, DMARC) is correctly configured in Klaviyo. Check your Klaviyo deliverability dashboard before November for any red flags.

Should I run my BFCM sale early, or stick to Black Friday? Early BFCM sales (from mid-November) have become more common as brands compete for early shoppers. The risk is discount fatigue: if your sale runs for two weeks, the urgency is lower. A sharp 4 to 5 day sale (Thursday VIP access through to Tuesday wind-down) generally converts better than a drawn-out two-week event, unless you are in a category where early gifting decisions are common (bespoke, custom, or long-lead products).

Shopify Black Friday Email Strategy: The Sequence That Maximises Revenue Across the Weekend