Any guests, external or anonymous users in a Teams meeting can view and collaborate on the whiteboard during the meeting. They will not have continued access to the whiteboard after the meeting ends. This feature only applies to customers using Whiteboard on OneDrive for Business.
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Earlier Feature (Not Deprecated)
Set-SPOTenant -OneDriveLoopSharingCapability ExternalUserAndGuestSharing
New Rollout Feature
Set-SPOTenant -AllowAnonymousMeetingParticipantsToAccessWhiteboards On
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Outcome : Any guests, external or anonymous users in a Teams meeting can view and collaborate on the whiteboard during the meeting. They will not have continued access to the whiteboard after the meeting ends. This feature only applies to customers using Whiteboard on OneDrive for Business.
"OneDriveLoopSharingCapability ExternalUserAndGuestSharing" This is dependent on Sharepoint External sharing which has to set as Most Permissive(Mandatory) before ran the command.
Connect-SPOService
Set-SPOTenant -OneDriveLoopSharingCapability ExternalUserAndGuestSharing
Get-SPOTenant
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“AllowAnonymousMeetingParticipantsToAccessWhiteboards On” There is not any dependency.
Connect-SPOService
Set-SPOTenant -AllowAnonymousMeetingParticipantsToAccessWhiteboards On
Get-SPOTenant