How do you actually prove ROI when a client success story needs to work for both LATAM and US markets?

I’ve been wrestling with this for a while now, and I think I’m finally seeing the real problem. We had this client—beauty brand, solid product, good traction in Mexico and Colombia. They wanted us to turn their story into something that would resonate with US audiences too. Sounds simple on paper, right? But here’s what actually happened:

We documented the Mexico launch: 3x conversion lift in 8 weeks, massive TikTok momentum with micro-influencers. Great story. Then we tried to present the exact same metrics to US audiences through similar creators, and… it just didn’t land the same way. The US market wanted to see different KPIs—they cared more about customer retention and repeat purchase rate, not just initial conversions. LATAM was all about rapid growth and viral moments.

So we basically had two completely different success stories hiding inside one campaign. Same client, same product, wildly different proof points.

I started thinking about this differently after: what if we document the story twice from the beginning? Not translate it—actually build separate case studies that show how the same brand solved different market problems. For LATAM, it’s the growth story. For US, it’s the sustainability and unit economics story.

The tricky part is doing this without it feeling like we’re cherry-picking data. We’re not. It’s just that each market cares about different metrics, and that’s completely legitimate.

Has anyone else had to rebuild a success story entirely for a different market, rather than just translating it? What metrics did you actually lead with?

This is exactly the problem I see constantly. You’re touching on something critical: ROI measurement is culturally contextual, and most agencies gloss over that.

Here’s what the data actually shows us: US investors and brands want to see LTV:CAC ratios and payback periods. LATAM focuses more on GMV growth and velocity metrics. If you present a LATAM success story (50% MoM growth!) to a US audience as your proof point, they’ll mentally dismiss it because it doesn’t address their risk model.

I’d actually recommend building a three-layer case study system:

  • Layer 1: Core business impact (what happened)
  • Layer 2: Market-specific KPIs (why it matters in LATAM vs US)
  • Layer 3: Methodology (how we measured it)

The honest part? It takes 2-3x longer to document properly. But your close rates on similar prospects in each market will improve dramatically because you’re speaking their language—literally and operationally.

Also—and this matters—make sure you’re tracking attribution separately by market from day one. We’ve seen too many agencies try to retrofit data after the campaign ends. If you know from week two that the US cohort needs different messaging to convert, you can actually pivot the creative and measure impact, rather than guessing afterward.

You know what I love about this approach? It’s not just better for prospects—it actually strengthens your relationship with the original client. We had a beauty brand similar to yours, and when we showed them this dual-lens thinking, they suddenly felt like we really understood their market complexity. That client became an advocate and referred us to two other companies.

I’d also suggest involving the client’s regional teams in the story-building process from the start. So like, have the Mexico team and the US team actually contribute to how they want their success framed. It’s collaborative, it’s authentic, and it gives you incredible insights into what actually moves the needle in each market. Plus, the client feels heard.

This is a sophisticated conversation. Most agencies treat case studies like static documents—they’re not. They’re dynamic assets that need to evolve with market conditions.

What I’d push on is the measurement infrastructure. Before you build the second version of the story, make sure you have clean data separation from the original campaign. Can you actually isolate US vs LATAM performance? If not, you’re building a story on shaky ground.

Second thought: consider that US and LATAM might respond to completely different segments within the case study. Maybe LATAM cares about the creator selection process (how you found the right influencers), while US cares about the compliance and brand safety layer. That’s another reason to rebuild rather than translate.

What’s your current attribution model looking like across these markets?

Man, this is hitting close to home for us. We’re trying to expand our SaaS product from Russia into US and EU markets, and we’re running into exactly this. Our Russian customers care about total implementation cost and speed to value. US customers want to see ROI and competitive positioning.

I’m stealing your idea of documenting the story twice. But I’m wondering—how do you handle the optics of having two different case studies? Did any of your prospects get confused or think you were hiding something? We’re worried about transparency, but we also don’t want to look like we’re being evasive with data.

Real talk from someone running a boutique shop: this is where agencies win or lose trust. I’ve seen competitors present the same metrics to every market, and it feels hollow. When we built our process to show market-specific ROI, our close rates went up 40%.

Here’s the operational piece: build your success story template to include a “market context” section upfront. Literally write: “This case study is optimized for US audiences” or “optimized for LATAM brands.” It’s transparent, it’s honest, and it actually increases credibility because you’re not pretending one story fits all.

Also—and this is practical—your sales team will use these stories differently. In US sales calls, you’re leading with retention and efficiency. In LATAM calls, you’re leading with growth speed. If your team knows the story is intentionally built for that context, they sell it better.

Okay, from a creator’s perspective—and this might seem obvious to the strategists in here—but when you’re telling a story about a campaign I was part of, the things that resonated with me were totally different depending on who I was talking to.

Like, with my US collaborators, they wanted to know about long-term brand relationships and repeat partnerships. With my LATAM creator friends, they honestly just wanted to know how much money was in it and how fast the payment came. :sweat_smile:

So when you’re building these case studies, maybe also think about how creators in each market perceive the success? Because if your story doesn’t match what creators in that market actually experienced, other creators will call BS and your story loses power.

Just a thought from the trenches!