Infinite times. According to the query of Aauto quickless in official website, on the platform of Aauto quickless, doctors can apply for certification of Yellow V, which can help doctors expand their influence in Aauto quickless. If the certification fails, they can apply again. By July 20, 2023, there is no limit to the number of times, and you can apply unlimited times. Aotekuai is a product of Beijing Aotekuai Technology Co., Ltd. ..