Navmesh in a spherical surface

Tried to look around but couldn’t find a definitive answer. I’m wondering if its possible to use the current Unity Navmesh system in a spherical surface? If so how? If not, are there any other out of the box solutions?

If you mean that you want them to navigate on the surface of a sphere (as if it were a planet), I’m fairly certain the built-in NavMesh system can’t be coerced to handle this. I could be wrong, but I believe you’d have to write your own implementation or check for one on the asset store.