Of course the customer is always right even if he isn't right because the misunderstanding should be delivered professionally from your respectable side depending on the situation.
customers are always right to cetain extends depending on the matter at hand, in all proffesional dialogue one way or another an understanding need to be reached.
of course the customer and client is always right it is your job as a manager to adapt to every situation. Clients and customers are what keep a business running.
Indeed, Client/Customer is always right.... This may happen between you and your client/customer misunderstanding of the dialog s during the deal or at customer services. Customer/clients always right because they reserve their rights for their satisfactions.