What SMS does Unicom send to inquire about its business?

Unicom users can send a short message "YDYWCX" to 100 10 when inquiring about the opened services. You can also use the following methods: 1, call the customer service hotline of China Unicom 100 10, and press 0 to switch to the manual service for business inquiry; 2. Through the online business hall, the operation method is as follows: A: Open Unicom official website, click Login, enter your mobile phone number and password, and log in to the platform; B: Select "Self-service" in the navigation above; C: On the "Self-help" page, click "Handle Business" on the left, and then click "Query Booked Business" on the right; D: Then you can check the types of services you have opened.