The landlord depends on which city you are in. If the People's Insurance Bureau of your city holds the Buyer's Examination, you can register at the local People's Insurance Bureau. No need to find a training institution. At the same time, in order to ensure the passing rate, they suggest that you have pre-test counseling. If you are a buyer or an assistant buyer, it is a professional certificate. For example, you need to find a training institution to take the second-level procurement test. Only before taking this technician training exam, you need to train for a certain period of time before you can participate in the training. It is true that the certificate is divided into industry associations, mainly according to the needs of the landlord. Ministry of Human Resources and Social Security's vocational qualification certificate is highly recognized in China and is for reference only. I hope I can help you.