OptionalConfigurationProvider-specific result detail to persist on the identity's Configuration (the external
object id of the created mailbox, the credential reference, the carrier order id, …). Never
contains a raw secret — secrets go through MJ's credential system and are referenced by id.
OptionalDisplayThe display name set on the identity.
The provisioned identity value (the mailbox address / phone number / account id).
The result of a provisioning request — the concrete identity that was created/claimed.