Trust is the foundation of effective cross-functional collaboration. When teams trust each other, they share information more freely, give honest feedback, and work through challenges constructively.

Here are practical ways to build trust across different functions:

• Deliver on your commitments. When you say you'll do something, follow through. Being reliable in small things builds confidence that you'll be reliable on bigger issues. If you can't meet a commitment, communicate early and explain why.
• Give credit generously. As a product manager, your success depends on the expertise of many people across different areas. Publicly recognize contributions from various team members and departments. This shows that you value their work and aren't trying to take all the credit for the product’s success.
• Admit mistakes. When things go wrong (and they will), take responsibility for your part rather than pointing fingers. This vulnerability demonstrates integrity and encourages others to be equally honest.
• Show genuine curiosity. Ask questions about other teams' processes, challenges, and perspectives. Taking time to understand how they work and what matters to them demonstrates respect for their expertise.
• Stay humble. If you don’t know something, treat it as a chance to learn. If you’re unsure about a technical concept, ask an engineer to explain it. If a UX principle isn’t clear, talk it through with a designer. These moments not only help you grow but also build a strong rapport with the people you work with.

Trust isn't built in big moments but through consistent small interactions over time. Each decision, conversation, and action either builds or erodes trust with your cross-functional partners.