I’m testing the same UGC campaign across Mexico, Brazil, and Colombia on Instagram, and the performance is wild. Same product, same creative format, same messaging structure—but the engagement patterns are completely different.
In Mexico, I’m seeing consistent, steady engagement but lower viral potential. In Brazil, the same content is getting spikier engagement—higher peaks but less predictability. Colombia is somewhere in between, but with a different engagement type—more shares relative to likes compared to the other two.
At first I thought it was random variance, but after running this test a few times, the patterns are consistent enough that I think there’s something real happening at the audience level.
What I’m trying to figure out: Is this a platform algorithm thing? Like, does Instagram’s algorithm work differently in each country based on how the local audience behaves? Or is it a cultural audience preference thing? Like, do Mexican audiences genuinely engage differently than Brazilian audiences?
The reason this matters is because if it’s algorithm-driven, I need to adjust my content format by country. If it’s cultural, I might need to adjust the actual message or emotion I’m tapping into.
I’ve also noticed that the platforms people use most varies by country—TikTok seems bigger in Brazil, Instagram dominates in Mexico, YouTube is surprisingly strong in Colombia. So I’m wondering if audiences that chose to spend their time on Instagram in Mexico are fundamentally different from audiences choosing Instagram in Brazil (because TikTok is their primary).
Has anyone else tested campaigns across these three markets specifically? What engagement differences have you actually observed, and more importantly, what did you change based on what you learned?