The number of records you can import depends on your project type.
Subscription Projects
Each table (Sessions, Speakers, Exhibitors, Media, and Attendees) has specific import limits. You can review these limits at ativ.me/epplans.
Pro Projects
Pro projects are available in different data tiers that are based on the number of Agenda records. Common tiers include 1,000, 5,000, 10,000, or custom agenda record limits. You can learn more here about how agenda records are calculated toward your limit. Only the Agenda table is limited in Pro Projects while the other tables can exceed the tier.