How SBC helped a Fashion Brand Scale 106% More Spend on TikTok
A fashion e-commerce brand wanted to scale Q4 spend before Black Friday. Their TikTok campaigns couldn’t clear budget reliably at competitive bids. SBC fixed this and lifted weekly spend from $5,246 to $10,816 while blended CPA stayed below $3.
+106%
Weekly Spend Growth
$10.8k
Weekly Spend After Scale
3,890
Purchases After Scale
$2.78
Blended CPA After Scale
Overview
This case study covers an anonymized fashion e-commerce brand running two active TikTok ad accounts ahead of Black Friday. They came to SBC one month before peak season because spend was stalling well below target even after bid increases. The brief wasn't to chase volume at any cost. It was to unlock more spend fast, keep acquisition efficient, and avoid breaking performance in the most competitive stretch of Q4.
Challenge
The immediate problem was delivery. Even after raising bids from $3 to $4–5, TikTok still wasn't spending the daily budgets consistently, so the client couldn't get close to the scale they needed before Black Friday.
The market made that worse. Q4 competition drove CPMs up, older bid levels stopped clearing auctions, and the client's existing setup relied mostly on broad targeting, which left little room to spread spend intelligently when pressure increased.
Two accounts were stuck around roughly $200–400/day instead of the desired $800/day each
Bid increases alone created more cost risk without solving delivery stability
The team had no reliable structure for scaling into Black Friday without losing CPA control
If that stayed unchanged, the brand would enter the highest-demand week of the quarter under-delivering budget, missing conversion volume, and scaling too late to capture peak seasonal demand.
What We Did
Validated the real bottleneck
We checked the issue with TikTok support first to rule out a platform-side bug. That clarified the actual problem: bids were still not competitive enough for Q4 conditions, so forcing higher bids alone wasn't the right scaling path.
Switched from bid pushing to horizontal scale
Instead of relying on aggressive tCPA increases, we expanded the number of campaigns running at the same time. That gave the algorithm more chances to find spend across different audience pockets without leaning on one fragile setup.
Diversified audience entry points
We launched campaigns across broad, interests, high spending power, hashtag interaction, buyer exclusions, and no-bid setups. Broad campaigns stayed in place as stabilizers while newer audience structures opened fresh routes to delivery.
Managed performance daily
We monitored CPM, CPC, CTR, CPA, and spend behaviour every day, then cut weak campaigns or creatives quickly when they failed to produce the right upper-funnel signals or trend back toward an acceptable CPA over time.
Results
Combined Weekly Spend
Weekly Purchases
Blended CPA
Across both accounts, weekly spend rose from $5,246 to $10,816 and purchases grew from 2,170 to 3,890. The system scaled within days of launch while blended CPA stayed below $3, even during Black Friday pressure.
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