Can excellent customer service replace marketing?

No because a look at an industry or organization value chain shows the two activities as part of a value generating system (i.e. Porter's value chain). These two activities are primary activities and they play a different role within the value creation. However, if the are integrated to work together they can generate a real competitive advantage. 

Not really. Each department or discipline (Marketing & Customer service) has its own significance, relevance & merits. These two have are dependent on each other & are meant to be integrated to achieve the desired objectives of an organization. Thanks for the invitation

Hello, The three main function in any corporate are marketing, finance, and operations, in the service industry operations means customer operations or customer service, so the relationship is not a competition model, it is based from the beginning on a strong marketing plan, with the appropriate funds implemented by powerful empowered customer operations.

Customer is king of business, so we maintain customer relation in good. They will recommend to other, so we can easily marketing our business.

No, because it is a part of the marketing strategy of the company and within the marketing circle and under the marketing strategy of the company

That really depends on the industry. If you are in personal services industry, the answer is possibly - yes. For instance, if you are running a spa, dental clinic. nip and tuck operation or beauty parlor, then your happy customers will be your best marketing and their referrals will be the best advertising. In most other industries, great service and customer care can only complement marketing, not quite replace it.