I encountered an error with the webinar registration function.

[DanKim]

We reserved and conducted a webinar for an important company event. Approximately 260 people were expected to attend the event. We enabled the registration function and set it up so that when attendees entered their Zoom IDs, registration would be automatically approved. However, when about 100 people entered their IDs, they received a message saying 'Invalid ID' and were unable to complete the registration. This caused disruptions to the seminar, and I'm curious as to why this issue occurred and what settings needed to be adjusted.