IdentifierForVendor returns 00000000-0000-0000-0000-000000000000

I'm trying to use identifierForVendor in my AppClip, but the method returns 00000000-0000-0000-0000-000000000000 on any device.

XCode version - 12.0.1 (12A7300)
IOS version - 14.0

In a target with a full version of the app, the method returns correct UDID.
This is expected and documented behavior. It's done for privacy reasons.
IdentifierForVendor returns 00000000-0000-0000-0000-000000000000
 
 
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