This research explores the suppliers of customer's product for the impact of cash flow selectivity. The whole information’s is from Taiwan's listed company. Basing on goal of sustainable management, the company gets the advantage of business, profit and marketing share due to keep grow up and extension. Existing some many effects, the company gets cash from real marketing which is correlation of investment policy and finance policy. These effects include: 1. Marketing un-balance theory due to asymmetric information. 2. Agency problems; the over cash flow caused by increasing cost of agency.