- Create an archive migration mapping with “Collect retention tags” enabled and start the migration.
- Items that do not have a retention category mapping defined will be exported from Enterprise Vault but not imported to Office 365.
- Disable ‘Collection retention tag’ and restart Office 365 module.
- Run a container mapping health check and verify that no issues have been reported.
- Items that were not imported initially are migrated.
- Stage 2 begins.