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No. Selling is one activity of the entire marketing process. Selling is the act of persuading or influencing a customer to buy (actually exchange something of value for) a product or service.
Marketing activities support sales efforts. Actually, they are usually the most significant force in stimulating sales. Oftentimes, marketing activities (like the production of marketing materials and catchy packaging) must occur before a sale can be made; they sometimes follow the sale as well, to pave the way for future sales and referrals. Many people mistakenly think that selling and marketing are the same - they aren't. You might already know that the marketing process is broad and includes all of the following:
Discovering what product, service or idea customers want.
Producing a product with the appropriate features and quality.
Pricing the product correctly.
Promoting the product; spreading the word about why customers should buy it.
Selling and delivering the product into