Lin mark this message invalid request
｜originally written by Lin
發票App，靈感來自蒐集數據。他們陸續收到客戶反應， 希望能更清楚掌握廣告跟營收的關聯性、購買自家產品外的消費者行為，作為日後投放廣告或製作廣告時可參考的依據 。這也是行銷活動之一。
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