Can we have more than one Product Owner?

How a product owner can be a master in all backlog user stories??... In this case how he will be able to decide on a topic where he is not confident??

How about priorizing epics vs prioritizing user stories? The epic is the destination, the user story is the path - given current, wind, power and skills of the rowing crew.. Do we need the same person to decide on destination and path?

I would say the WHAT is the PO the HOW is the Team.
But both can be discussed.
The How has to be discussed if the solution costs too much.
Till now we are estimating the User Storys.

Backlog items can be discussied with all stakeholders at any time, but once an item made the sprint backlog, the PO should be confident enough tot make decisions on questions that arise while implementing those items.

In review the stakeholders can assess whether the decision was any good and if not, add an item to the top of the backlog correcting it.

Thanks for reading and commenting, Maarten. Epics and user stories don't necessarily describe goals and paths. They are complimentary practices for managing the Product Backlog. Regardless of how this is done, the Product Owner is accountable for managing the Product Backlog ("What?"), while the Development Team is accountable for the "How?". These accountabilities lie with different people on a Scrum Team to promote self-organization, bottom-up intelligence and collaboration. The Product Owner may delegate parts of their work to the Development Team, including some decision-making about the "What?". However, the Product Owner remains accountable. I hope this helped.

Arun, thank you for asking. The Product Owner doesn’t have to be the expert in everything on the Product Backlog. The Product Owner can delegate parts of the Product Backlog management work to the Development Team if it has more expertise in a topic. In that case, however, the Product Owner remains accountable for the Product Backlog. Scrum really is about maximizing value by collaborating across roles and maintaining clarity about accountabilities.