From your examples, it seems that you make a distinction between B2B (with possibly internal clients) and B2C. The general advice that would still apply to bot

From your examples, it seems that you make a distinction between B2B (with possibly internal clients) and B2C. The general advice that would still apply to both would be: understand who your client is and what they need in the context in which they evolve, be they consumers in a country you're not familiar with or mechanical engineers you barely know the job of.