1. Try to contact the relevant departments or staff: you can consult the staff of the Canton Fair or relevant institutions to find out whether they provide special staff to assist in code scanning. Some organizations will send staff to the venue to help exhibitors.
2. Find partners of other enterprises: Try to negotiate with representatives or partners of other enterprises to see if they can help each other in document scanning. After all, the Canton Fair is an interactive platform for enterprises, and many enterprises will be willing to help each other solve problems.
3. Understand the on-site service: Canton Fair will generally set up some service areas, such as exhibition service centers or information desks. You can go to these places for help and ask if you can provide related services such as document scanning code.
Please note that the above scheme is for reference only, and the specific operation depends on the specific situation of the Canton Fair. I suggest you know the relevant regulations and procedures in advance, and always pay attention to the official notices and guidelines issued by the Canton Fair. If you have any other questions, it is suggested to consult directly with the staff or organizers of the Canton Fair.