Career foundation
I learned to lead without assuming authority was the same thing as influence.
Multi-unit leadership changed how I worked with people. I was no longer the person directly running every location I supported, so telling experienced managers what their own business looked like was rarely useful. The better approach was to understand how they saw the opportunity, bring experience and best practices, help them build a plan around the behaviors they could influence, and use my network to bring in support they could not access alone.
That lesson carried naturally into customer-facing technical work. Customers, Product, Engineering, implementation partners, and operations teams usually do not report to the person trying to move the problem forward. Progress depends on context, trust, good questions, and enough shared evidence for people to choose the next action themselves.