Most organizations treat communication as the last step. The product gets built, and then someone is tasked with the messaging. But the customer insights that build great messaging are the same insights that build great products.
Good messaging starts with understanding what customers deal with every day: the pressure they're under, what they've already tried, and what keeps getting in their way. People choose a product because it helps them make progress on something that matters to them.
I look closely at the space between where a customer is and where they want to be, because that's where customers get stuck and deals stall.
I pay attention to the outcome a customer wants and also to what makes their journey toward it difficult, complex, or confusing. I carry those insights in two directions: back to product and leadership teams as clear priorities, and out to the market as messages that make customers think, finally, someone understands what I'm dealing with.