For events held multiple times, you can sell tickets for different dates under the same event page. 

However, if an attendee orders tickets for multiple dates, those tickets will be combined into one.

When the combined ticket is checked in, all tickets for the selected dates will be checked in simultaneously. It is not possible to check in tickets for specific dates separately.

A ticket that has been combined within the same event page will display only one QR code. Individual QR codes for each ticket are not generated, and once the QR code is checked in, it will be marked as used.

If You Want to Check In Tickets by Date  

To check in tickets separately by event date, we recommend creating separate event pages for each date. For instructions on how to create multiple events, please refer to How can I create an event with multiple shows or time slots?