 You need to understand the hierarchy differences between product manager and product owner. Product owner is at the end of the totem pool. If you line up all the different titles of product management career, it looks like this. Product owner, product manager, senior product manager, group product manager, direct product, VP product or chief product officer. If a company gives you a title as product owner and they also give another person title as a product manager, it's very likely product managers will manage the product owner or mentor the product owners. For some companies, they don't have those two titles. They merge both of them into the same title, which is product owner. In that case, you need to play the both role of product owner and product manager for your current company.