There is a limit of 600 offers for event bundles.
That means that, at this time, you cannot have more than 600 offers per event bundle. Each time you create an event with multiple offers, up to 60 offers are automatically created. You can add more offers, with a maximum number of 600 offers in total.
If this limit has been reached for one of your events:
Alternative Solution #1:
Archive the offers that were completed. Archiving will reduce the bundle count and you can add extra offers to your event.
Example:
You have reached the limit of 600 event offers and then archive 50 event offers. You can now add 50 more offers to the event.
You have reached the limit of 600 event offers and then archive 50 event offers. You can now add 50 more offers to the event.
Alternative Solution #2:
Create a stand-alone or course-connected event bundle every year, every two years, or similar.
Example:
The offers of your event per year are up to 120, so you create a five-year stand-alone/course-connected event.
The offers of your event per year are up to 120, so you create a five-year stand-alone/course-connected event.