Impact of SIWA App transfer on migration on relay emails

Hello,

we're currently evaluating the side effects of transferring our app to a different Apple developer account. Our users use SIWA to sign in to our platform which uses Auth0.

As I understand it, the identifiers provided by Apple will change, and as such Auth0 will not recognise them and treat them as new users. I've read conflicting documentation, reports, discussions, etc, so it would be great if I could get some clarification on the topic.

Furthermore we're concerned about the Hide My Email functionality. A lot of our users use this feature. Will the relay email for each user change with the transfer? If so, does the 'old' relay email stop working as soon as the transfer happens?

Thanks in advance!

Impact of SIWA App transfer on migration on relay emails
 
 
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