under different circumstances, different documents are required. According to the "Regulations on the Management of Requiring Certificates and Tickets for Food Purchasing in Catering Services", take the implementation of unified distribution operation mode as an example:

Article 13 If unified distribution operation mode is implemented, the headquarters of catering service enterprises can uniformly inspect, request and keep the license, business license and product qualification certificate stamped by the supplier, and establish procurement records; Each store shall establish and keep daily purchasing records; For products purchased by stores themselves, the system of claiming certificates and tickets, incoming goods inspection and purchasing records shall be strictly implemented.

Extended information:

According to the Provisions on the Administration of Requiring Certificates and Tickets for Food Purchasing in Catering Services:

Article 7 When purchasing food, food additives and food-related products, catering service providers shall purchase them from food production and business units or wholesale markets with complete licenses, and shall request and keep shopping vouchers stamped (or signed) by the suppliers. The shopping voucher shall include the supplier's name, product name, product quantity, delivery or purchase date, etc.

in the case of long-term fixed-point procurement, the catering service provider shall sign a procurement and supply contract with the supplier, including ensuring food safety.

Baidu Encyclopedia-Provisions on the Administration of Requiring Certificates and Tickets for Food Purchase in Catering Services