A commercial transaction management device includes a coupon creation control unit that receives a coupon issuance request containing sales terms when purchasing a plurality of items together from one user, a determination unit that determines whether to accept the sales terms based on information from a shop related to the items, and an issuance unit that issues an electronic coupon when it is determined to accept the sales terms. This enables an offer of a coupon that matches a desire of one user. In addition, the commercial transaction management device further includes a purchase receiving unit that receives a purchase order of a plurality of items with the sales terms from another user having received an offer of the coupon from one user, and therefore other users can also purchase a plurality of items with the sales terms contained in the coupon.