1. Configure projects and mappings in Fly

    To configure projects and mappings, refer to and for details.

    To migrate Recoverable Items folders, note the following:

    - If you want to migrate only the data in SubstrateHolds, Versions, Purges, and DiscoveryHolds folders, configure the **MigrateLegalHoldFolder** customized feature in the migration policy. Refer to for details. - If you want to migrate Deletions folders, select the **Recoverable Items folders** option in the migration policy and make sure the **MigrateLegalHoldFolder** customized feature is not configured.