Black Friday isn't won in November — it's won in the weeks before. Costs rise and attention scatters on the day; prepared brands harvest, unprepared ones overpay.
Tease the campaign, warm retargeting pools, prepare all creatives and landing pages, schedule emails.
Push hardest to warm audiences (retargeting + list). Watch stock and ROAS live; move budget to winners fast.
Post-sale email flow, ask for reviews, retarget buyers with complements in December.
Bottom line: the discount is the smallest part — audiences built in advance are the campaign.