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corso/website/docs/support/known-issues.md
Abin Simon fc656c9640 Add a product behavior section in docs
2024-01-15 15:17:09 +05:30

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Known issues and limitations

Issues

The following are the issues that we're currently aware of within the project.

General

  • Corso supports Exchange (email, calendars, contacts), OneDrive (files) and SharePoint (Document Libraries) M365 data. Additional data types and services will be added in subsequent releases.

  • Provides no guarantees the inclusion of data that's moved, added, or deleted from M365 while a backup creation is running. The next backup creation will correct any missing data.

Drive items (OneDrive/SharePoint)

  • Permissions/Access given to a site group can't be restored.

  • If a link share is created for an item with inheritance disabled (via the Graph API), the link shares restored in that item will not be inheritable by children.

Exchange

  • Backups of Exchange email may not include changes to the read status of an email if no other changes to the email have been made since the previous backup.

  • Restoration of Nested attachments within Exchange Mail or Calendars aren't yet supported.

  • Calendars containing zero items or subfolders aren't included in the backup.

  • Backing up a group mailbox item may fail if it has a large number of attachments (500+).

Teams

  • Teams conversation replies are only backed up if the parent message is available at the time of backup.

  • Groups and Teams support is available in an early-access status, and may be subject to breaking changes.

  • Restoring the data into a different Group from the one it was backed up from isn't currently supported.

Limitations

Following are unexpected behaviors or inherent limitations of the project.

Drive items (OneDrive/SharePoint)

  • Link shares with password protection can't be restored.

  • Restored link shares always generate different links from the original.

  • Anonymous link shares (link shares which aren't associated with any user) aren't restored.

Exchange

  • Exports of multipart emails containing both HTML and text versions will only produce the HTML version of the email.

Teams

  • Teams messages don't support restore due to limited Graph API support for message creation.