Veeam Backup for Microsoft 365 5b cumulative patch KB4135

• Optimized operations for faster execution of the (GET) /v5/Organizations REST API request.
• Optimized operations for faster execution of the Get-VBOEntityData PowerShell cmdlet.
• Optimized operations for faster execution of the following REST API requests in infrastructures where some of the remote proxies are offline:

o   (GET) /v5/BackupRepositories/{backupRepoId}/backedupOrganizations

o   (GET) /v5/BackupRepositories/{backupRepoId}/OrganizationData

o   (GET) /v5/BackupRepositories/{backupRepoId}/UserData

o   (GET) /v5/Organizations/{organizationId}/usedRepositories

o   (GET) /v5/Reports/action for generating a Mailbox Protection report

• Ability to quickly get basic properties of backup proxies, including offline remote proxies, via REST API and PowerShell:

o   using the “extendedView = false” with the (GET) /v5/Proxies or (GET) /v5/Proxies/{proxyId} requests

o   using the “ExtendedView” parameter with the Get-VBOProxy cmdlet.

General

• Adding a new backup repository via the UI may fail with “The server did not provide a meaningful reply; this might be caused by a contract mismatch, a premature session shutdown or an internal server error”.
• Under certain conditions after upgrading to cumulative patch KB4124 (build 5.0.1.207), a Workgroup proxy becomes offline and unavailable.
• Adding an Office 365 organization that belongs to the China region may fail with “Invalid filter clause” error.

Object storage repositories

• Synchronization of a repository extended to object storage may fail with “Sequence contains no elements” error.
• Synchronization of a repository extended to object storage may fail with “Guid should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)” error.
• Upgrading a repository extended to object storage may fail with “JetError -1605, JET_errKeyDuplicate, Illegal duplicate key error”.

Backup

• SharePoint sites are skipped from processing if both Microsoft Teams and SharePoint site objects are explicitly added to the backup job.
• When multiple backup jobs are running simultaneously, some of them may hang in the “Operation pending” or “Connecting to organization” state.

Restore

• Under certain conditions, SharePoint library restore may fail with “The collection has not been initialized. It has not been requested or the request has not been executed” error.
• In BaaS scenarios, restore sessions initiated on the tenant side continue to be displayed as active in Veeam Backup for Microsoft 365 console after the tenant machine has been turned off.
• Restore of a SharePoint list with a multilevel folder hierarchy may fail with the timeout error.  
• When exploring standalone backup databases in Veeam Explorer for Microsoft Exchange, some mailbox folders may not be displayed.
• Exchange restore using Basic authentication can be initiated with an empty password field.

Reporting

• Generation of the Mailbox Protection report may fail with “Object reference not set to an instance of an object” error.