In 8 essential metrics for measuring product-led growth Katryna Balboni discusses a few important metrics for measuring and monitoring product-led growth (i.e., turning users into advocates so that they can they drive more acquisition and growth). Time to Value is one that seems particularly useful:

Time to value (TTV) is the amount of time it takes new users to realize your product’s value. Your goal should be to reduce time to value as much as possible-the sooner users reach their first aha moment or activation event, the better.

To do this, focus on optimizing your user onboarding experience around the key actions within your product that correlate to activation-like inviting colleagues to your platform, importing customer data, or integrating with other tools in their tech stack.