The new Education Cloud and Nonprofit Cloud products introduced March 2023 use a Person Account architecture. This means that apps in these orgs also need to work with Person Accounts, so Summit Events needs to be reviewed and have edits made so it works with this new architecture.

One specific thing that has to be edited is the Contact Matching functionality - if a match is not found then instead of a new Contact record being created (as is the current functionality) an Account record for this person with the account record type used for Person Accounts needs to be created.

While this is the only needed change I can think of, testing of SEA in an org using Person Accounts will need to be done to determine if any additional changes are needed.