Commands › Exchange Online
Set-UnifiedGroup
Modify Microsoft 365 Groups in your cloud-based organization. To modify members, owners, and subscribers of Microsoft 365 Groups, use the Add-UnifiedGroupLinks and Remove-UnifiedGroupLinks cmdlets. **Important**: You can't use this cmdlet to remove all Microsoft Online Email Routing Address (MOERA) addresses from the Microsoft 365 Group. There must be at least one MOERA address attached to a group. To learn more about MOERA addresses, see How the proxyAddresses attribute is populated in Microsoft Entra ID.
Quick start script
# Set-UnifiedGroup — quick start (serv365.ai)
# 1. Connect (app-only shown; interactive: omit the certificate parameters)
Connect-ExchangeOnline -CertificateThumbprint $thumb -AppId $appId -Organization $org
# 2. Capture the current state first — you cannot roll back what you never recorded
$before = Get-UnifiedGroup
$before | Format-List
# 3. Make the change (dry run first)
Set-UnifiedGroup -Identity <UnifiedGroupIdParameter> -WhatIf
Set-UnifiedGroup -Identity <UnifiedGroupIdParameter>
# 4. Verify and diff
$after = Get-UnifiedGroup
Compare-Object ($before | Out-String) ($after | Out-String)Syntax
Set-UnifiedGroup [-Identity] <UnifiedGroupIdParameter>
[-AcceptMessagesOnlyFromSendersOrMembers <MultiValuedProperty>]
[-AccessType <ModernGroupTypeInfo>]
[-Alias <String>]
[-AlwaysSubscribeMembersToCalendarEvents]
[-AuditLogAgeLimit <EnhancedTimeSpan>]
[-AutoSubscribeNewMembers]
[-CalendarMemberReadOnly]
[-Classification <String>]
[-Confirm]
[-ConnectorsEnabled]
[-CustomAttribute1 <String>]
[-CustomAttribute10 <String>]
[-CustomAttribute11 <String>]
[-CustomAttribute12 <String>]
[-CustomAttribute13 <String>]
[-CustomAttribute14 <String>]
[-CustomAttribute15 <String>]
[-CustomAttribute2 <String>]
[-CustomAttribute3 <String>]
[-CustomAttribute4 <String>]
[-CustomAttribute5 <String>]
[-CustomAttribute6 <String>]
[-CustomAttribute7 <String>]
[-CustomAttribute8 <String>]
[-CustomAttribute9 <String>]
[-DataEncryptionPolicy <DataEncryptionPolicyIdParameter>]
[-DisplayName <String>]
[-EmailAddresses <ProxyAddressCollection>]
[-ExtensionCustomAttribute1 <MultiValuedProperty>]
[-ExtensionCustomAttribute2 <MultiValuedProperty>]
[-ExtensionCustomAttribute3 <MultiValuedProperty>]
[-ExtensionCustomAttribute4 <MultiValuedProperty>]
[-ExtensionCustomAttribute5 <MultiValuedProperty>]
[-ForceUpgrade]
[-GrantSendOnBehalfTo <MultiValuedProperty>]
[-HiddenFromAddressListsEnabled <Boolean>]
[-HiddenFromExchangeClientsEnabled]
[-InformationBarrierMode <GroupInformationBarrierMode>]
[-IsMemberAllowedToEditContent <System.Boolean>]
[-Language <CultureInfo>]
[-MailboxRegion <String>]
[-MailTip <String>]
[-MailTipTranslations <MultiValuedProperty>]
[-MaxReceiveSize <Unlimited>]
[-MaxSendSize <Unlimited>]
[-ModeratedBy <MultiValuedProperty>]
[-ModerationEnabled <Boolean>]
[-Notes <String>]
[-PrimarySmtpAddress <SmtpAddress>]
[-RejectMessagesFromSendersOrMembers <MultiValuedProperty>]
[-RequireSenderAuthenticationEnabled <Boolean>]
[-SensitivityLabelId <Sustem.Guid>]
[-SubscriptionEnabled]
[-UnifiedGroupWelcomeMessageEnabled]
[-WhatIf]
[<CommonParameters>]Parameters (56)
| Parameter | Type | Required | What it controls |
|---|---|---|---|
| -Identity | UnifiedGroupIdParameter | yes | The Identity parameter specifies the Microsoft 365 Group that you want to modify. You can use any value that uniquely identifies the Microsoft 365 Group. For example: |
| -AcceptMessagesOnlyFromSendersOrMembers | MultiValuedProperty | The AcceptMessagesOnlyFromSendersOrMembers parameter specifies who is allowed to send messages to this recipient. Messages from other senders are rejected. | |
| -AccessType | ModernGroupTypeInfo | The AccessType parameter specifies the privacy type for the Microsoft 365 Group. Valid values are: | |
| -Alias | String | The Alias parameter specifies the Exchange alias (also known as the mail nickname) for the Microsoft 365 Group. This value identifies the recipient as a mail-enabled object, and shouldn't be confused with multiple... | |
| -AlwaysSubscribeMembersToCalendarEvents | SwitchParameter | The AlwaysSubscribeMembersToCalendarEvents switch controls the default subscription settings of new members that are added to the Microsoft 365 Group. Changing this setting doesn't affect existing group members. | |
| -AuditLogAgeLimit | EnhancedTimeSpan | The AuditLogAgeLimit parameter specifies the maximum age of audit log entries for the Microsoft 365 Group. Log entries older than the specified value are removed. The default value is 90 days. | |
| -AutoSubscribeNewMembers | SwitchParameter | The AutoSubscribeNewMembers switch specifies whether to automatically subscribe new members that are added to the Microsoft 365 Group to conversations and calendar events. Only users that are added to the group after... | |
| -CalendarMemberReadOnly | SwitchParameter | The CalendarMemberReadOnly switch specifies whether to set read-only Calendar permissions to the Microsoft 365 Group for members of the group. | |
| -Classification | String | The Classification parameter specifies the classification for the Microsoft 365 Group. You need to configure the list of available classifications in Microsoft Entra ID before you can specify a value for this... | |
| -Confirm | SwitchParameter | The Confirm switch specifies whether to show or hide the confirmation prompt. How this switch affects the cmdlet depends on whether the cmdlet requires confirmation before proceeding. | |
| -ConnectorsEnabled | SwitchParameter | The ConnectorsEnabled specifies whether to enable the ability to use connectors for the Microsoft 365 Group. | |
| -CustomAttribute1 | String | This parameter specifies a value for the CustomAttribute1 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute10 | String | This parameter specifies a value for the CustomAttribute10 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute11 | String | This parameter specifies a value for the CustomAttribute11 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute12 | String | This parameter specifies a value for the CustomAttribute12 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute13 | String | This parameter specifies a value for the CustomAttribute13 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute14 | String | This parameter specifies a value for the CustomAttribute14 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute15 | String | This parameter specifies a value for the CustomAttribute15 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute2 | String | This parameter specifies a value for the CustomAttribute2 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute3 | String | This parameter specifies a value for the CustomAttribute3 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute4 | String | This parameter specifies a value for the CustomAttribute4 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute5 | String | This parameter specifies a value for the CustomAttribute5 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute6 | String | This parameter specifies a value for the CustomAttribute6 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute7 | String | This parameter specifies a value for the CustomAttribute7 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute8 | String | This parameter specifies a value for the CustomAttribute8 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -CustomAttribute9 | String | This parameter specifies a value for the CustomAttribute9 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. The maximum... | |
| -DataEncryptionPolicy | DataEncryptionPolicyIdParameter | The DataEncryptionPolicy parameter specifies the data encryption policy that's applied to the Microsoft 365 Group. You can use any value that uniquely identifies the policy. For example: | |
| -DisplayName | String | The DisplayName parameter specifies the name of the Microsoft 365 Group. The display name is visible in the Exchange admin center, address lists, and Outlook. The maximum length is 64 characters. If the value... | |
| -EmailAddresses | ProxyAddressCollection | The EmailAddresses parameter specifies all email addresses (proxy addresses) for the Microsoft 365 Group, including the primary SMTP address. In cloud-based organizations, the primary SMTP address and other proxy... | |
| -ExtensionCustomAttribute1 | MultiValuedProperty | This parameter specifies a value for the ExtensionCustomAttribute1 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. You... | |
| -ExtensionCustomAttribute2 | MultiValuedProperty | This parameter specifies a value for the ExtensionCustomAttribute2 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. You... | |
| -ExtensionCustomAttribute3 | MultiValuedProperty | This parameter specifies a value for the ExtensionCustomAttribute3 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. You... | |
| -ExtensionCustomAttribute4 | MultiValuedProperty | This parameter specifies a value for the ExtensionCustomAttribute4 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. You... | |
| -ExtensionCustomAttribute5 | MultiValuedProperty | This parameter specifies a value for the ExtensionCustomAttribute5 property on the recipient. You can use this property to store custom information about the recipient, and to identify the recipient in filters. You... | |
| -ForceUpgrade | SwitchParameter | The ForceUpgrade switch suppresses the confirmation message that appears if the object was created in a previous version of Exchange. You don't need to specify a value with this switch. | |
| -GrantSendOnBehalfTo | MultiValuedProperty | The GrantSendOnBehalfTo parameter specifies who can send on behalf of this Microsoft 365 Group. Although messages that are sent on behalf of the group clearly show the sender in the From field (`<Sender> on behalf of... | |
| -HiddenFromAddressListsEnabled | Boolean | The HiddenFromAddressListsEnabled parameter specifies whether the Microsoft 365 Group appears in the global address list (GAL) and other address lists in your organization. Valid values are: | |
| -HiddenFromExchangeClientsEnabled | SwitchParameter | The HiddenFromExchangeClientsEnabled switch specifies whether the Microsoft 365 Group is hidden from Outlook clients connected to Microsoft 365. | |
| -InformationBarrierMode | GroupInformationBarrierMode | The InformationBarrierMode parameter specifies the information barrier mode for the Microsoft 365 Group. Valid values are: | |
| -IsMemberAllowedToEditContent | Boolean | {{ Fill IsMemberAllowedToEditContent Description }} | |
| -Language | CultureInfo | The Language parameter specifies language preference for the Microsoft 365 Group. | |
| -MailboxRegion | String | The MailboxRegion parameter specifies the preferred data location (PDL) for the Microsoft 365 Group in multi-geo environments. | |
| -MailTip | String | The MailTip parameter specifies the custom MailTip text for this recipient. The MailTip is shown to senders when they start drafting an email message to this recipient. If the value contains spaces, enclose the value... | |
| -MailTipTranslations | MultiValuedProperty | The MailTipTranslations parameter specifies additional languages for the custom MailTip text that's defined by the MailTip parameter. HTML tags are automatically added to the MailTip translation, additional HTML tags... | |
| -MaxReceiveSize | Unlimited | The MaxReceiveSize parameter specifies the maximum size of an email message that can be sent to this group. Messages that exceed the maximum size are rejected by the group. | |
| -MaxSendSize | Unlimited | The MaxSendSize parameter specifies the maximum size of an email message that can be sent by this group. | |
| -ModeratedBy | MultiValuedProperty | The ModeratedBy parameter specifies one or more moderators for this recipient. A moderator approves messages sent to the recipient before the messages are delivered. A moderator must be a mailbox, mail user, or mail... | |
| -ModerationEnabled | Boolean | The ModerationEnabled parameter specifies whether moderation is enabled for this recipient. Valid value are: | |
| -Notes | String | The Notes parameter specifies the description of the Microsoft 365 Group. If the value contains spaces, enclose the value in quotation marks. | |
| -PrimarySmtpAddress | SmtpAddress | The PrimarySmtpAddress parameter specifies the primary return email address that's used for the recipient. You can't use the EmailAddresses and PrimarySmtpAddress parameters in the same command. | |
| -RejectMessagesFromSendersOrMembers | MultiValuedProperty | The RejectMessagesFromSendersOrMembers parameter specifies who isn't allowed to send messages to this recipient. Messages from these senders are rejected. | |
| -RequireSenderAuthenticationEnabled | Boolean | The RequireSenderAuthenticationEnabled parameter specifies whether to accept messages only from authenticated (internal) senders. Valid values are: | |
| -SensitivityLabelId | Guid | The SensitivityLabelId parameter specifies the GUID value of the sensitivity label that's assigned to the Microsoft 365 Group. | |
| -SubscriptionEnabled | SwitchParameter | The SubscriptionEnabled switch specifies whether the group owners can enable subscription to conversations and calendar events on the groups they own. This option can be set only in Exchange Online PowerShell. | |
| -UnifiedGroupWelcomeMessageEnabled | SwitchParameter | The UnifiedGroupWelcomeMessageEnabled switch specifies whether to enable or disable sending system-generated welcome messages to users who are added as members to the Microsoft 365 Group. | |
| -WhatIf | SwitchParameter | The WhatIf switch shows what the command does without making any changes. You don't need to specify a value with this switch. |
Reference facts derived from Microsoft documentation, © Microsoft, licensed CC BY 4.0; restructured with original guidance by serv365.ai.