legal. Using the business license of a convenience store to operate restaurants, even if there are three small items of food, is also beyond the scope of business, because the small items refer to fast food products. According to the relevant provisions of the State Council on the measures for investigating and banning unlicensed operations, the business license of a convenience store has not gone through the business scope registration formalities, which is beyond the approved registration, and can be considered as an illegal act, and it is legal for the municipal supervision not to allow sales.