If you can't participate in the offline training of Meituan Crowdsourcing after registration, you need to change the number of times or choose to cancel 2 hours before the training starts. To participate in the training, you need to bring your health certificate, take orders and use your mobile phone, and keep it fully charged. If you don't attend the training after registration and don't cancel it, you can't register again within one week, which is regarded as not attending the training.