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What is StorageProviderSyncRootInfo.Id used for
StorageProviderSyncRootInfo.Id Property: An identifier for the sync root.
An identifier in the form: [Storage Provider ID]![Windows SID]![Account ID]
[storage provider ID]: The name of your cloud storage provider.
[Windows SID]: The unique Windows SID that identifies the user.
[Account ID]: The service provider identifier for this user's current account.
Then second question about the format, specifically the storage provider part (the last part).
Some providers require the ability to provide multiple synchronization roots for a user. One example of this is a work and a personal account. The Account ID enables you to have multiple accounts registered for one user. If your provider does support multiple synchronization roots per user, this piece is required.
For more details, I suggest you could refer to the Doc: Integrate a Cloud Storage Provider
Thank you.
Jeanine
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