Set-CsPersistentChatPolicy

Set-CsPersistentChatPolicy
    [[-Identity] <XdsIdentity>]
    [-Confirm]
    [-Description <String>]
    [-EnablePersistentChat <Boolean>]
    [-Force]
    [-WhatIf]
    [-Tenant <Guid>]
    [<CommonParameters>]

Set-CsPersistentChatPolicy
    [-Confirm]
    [-Description <String>]
    [-EnablePersistentChat <Boolean>]
    [-Force]
    [-Instance <PSObject>]
    [-WhatIf]
    [-Tenant <Guid>]
    [<CommonParameters>]

The Persistent Chat service (which replaces the Group Chat service used in Microsoft Lync Server 2010) provides organizations with messaging and collaboration capabilities similar to those found in Internet discussion forums: users can exchange messages in real-time, yet can also revisit and restart those conversations at any time. Conversations can be based around specific topics and these conversations can be made available to everyone or to only a selected set of users. Likewise, individual chat rooms can be configured so that anyone can post a message or configured so that only designated presenters can post messages.

By default, users are not granted access to the Persistent Chat service; that access can only be granted if the user is managed by a Persistent Chat policy that allows for the user of the service. When you install Skype for Business Server, all your users are managed by a global Persistent Chat policy in which the use of Persistent Chat is disabled. If you want to give all your users access to the service you can simply set the EnablePersistentChat property in this global policy to True. Alternatively, you can create additional policies at the site or at the per-user scope, and thus provide Persistent Chat access to some users while denying this access to other users.

Skype for Business Server Control Panel: To modify an existing Persistent Chat policy using the Skype for Business Server Control Panel, click Persistent Chat, click Persistent Chat Policy, then double-click the policy to be modified.

Get-CsPersistentChatPolicy | Set-CsPersistentChatPolicy -EnablePersistentChat $True

In Example 2, Persistent Chat is enabled for all the Persistent Chat policies in the organization. To do this, the command first uses the Get-CsPersistentChatPolicy cmdlet without any parameters in order to return a collection of all the Persistent Chat policies. This collection is then piped to the Set-CsPersistentChatPolicy cmdlet, which sets the EnablePersistentChat parameter for each policy in the collection to True ($True).

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.

The Set-CsPersistentChatPolicy cmdlet accepts pipelined instances of the Microsoft.Rtc.Management.WritableConfig.Policy.PersistentChat.PersistentChatPolicy object.

Instead, the Set-CsPersistentChatPolicy cmdlet modifies existing instances of the Microsoft.Rtc.Management.WritableConfig.Policy.PersistentChat.PersistentChatPolicy object.