We quickly found a common language with the client. However, there appeared a challenge at some point. Access to the application must be closed, and there are restrictions on access to information about each event inside the application. A personal access checked by a moderator is required for all employees.
First, to fulfill this requirement, we developed manual moderation: when entering the event, the moderator checked people with the list and gave them access permissions. But at the first event it became clear that these actions take a lot of time, so a queue formed at the entrance.