A product owner needs to elaborate on a product roadmap.

Identify the product users and their high-level key activities to get their perspective because the product is intended for them.

Obtain the project sponsor's perspective to get an initial idea of the features they believe the product should have to guide the development team.

Analyze the development team's capacity and skills because these will determine which features to include in the roadmap.

Create a draft of the product roadmap that the development team can use as a guide for further guidance.