This post is from the Activity iPhone Duo UIKit Q&A.
"For payment confirmation and retry flows on Apple Duo:
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If fold occurs during payment confirmation screen:
- Should we pause/dismiss the confirmation modal?
- Can user confirm payment while device is folding?
- Should we preserve the confirmation state and re-display after fold completes?
- What if transaction is already processing when fold occurs?
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For failed payment retry scenarios:
- Should we automatically retry after fold completes?