Dynamics 365 do i need to add entity in the solution.

Hello All Experts,

I have two different entities Post Configuration and Post Configuration Rule entity.

I have one separate solution for which do i need to add these entities such that when i export the solution as manged and move it to the next instance the changes will get reflect.

i am asking this query because i am activating post configuration from settings area.

do i need to directly do it on the production.