Merchandise sales data processing device, merchandise sales data processing system including merchandise sales data processing device, and program

摘要

PROBLEM TO BE SOLVED: To smoothly check the printed contents of coupons accompanying a bonus event and check the bargain price of an advertisement. A merchandise sales data processing apparatus includes a merchandise registration apparatus for registering merchandise purchased by a customer, the retrieval means for retrieving special information applied to any business day, and the retrieval means It has an output means for outputting special information. [Selected figure] Figure 3