The document discusses three case studies of companies using customer relationship marketing strategies:
1) Gossard lingerie used SMS, a customer database, and integrated communication to develop customer relationships, resulting in a product selling out in 8 weeks that previously took 8 months.
2) McCormick spices built a customer value model and targeted media strategy using a customer database to drive multiple product purchases, achieving a 24% redemption rate for existing customers.
3) Muji increased average transaction value and cross-department purchases through a customer database, email marketing, and digital communication, with a 10% redemption rate and return on investment within 9 months.