Hello @IowaChapterIAEI ,
The legacy event system is currently slated to fully retire after March 31, 2024. Events built in that older editor will not be able to be copied, nor have a start/end date after that day.
If you're needing to setup an event for after that date, I'd advise using the newer event builder. For other step-by-step and visual guidance regarding the newer event tool, you can search for articles tagged with "eventsv2" in our Knowledge Base, or via the Help tab in your account.
If you have feedback regarding the newer event system's beta, please see our Ideas board for threads marked with [Events 2.0].
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