@KhushbooS168433 

If you have set protection policy to protected, then customers cannot see any code or logic used for the scoped application.

If you have used protection as none, customer can read and edit the code. If it is read-only, they can read but cannot edit.

As per community guidelines, you can accept more than one answer as accepted solution. If my response helped to answer your query, please mark it helpful & accept the solution.

Thanks,

Bhuvan