To set Microsoft SharePoint as the only cloud storage option for all teams, you need to use the Teams admin center to disable the third-party cloud storage services. Here are the steps to follow:

Sign in to the Teams admin center with your Microsoft 365 username and password1.

In the left navigation, go to Org-wide settings > Services & add-ins.

Under Cloud file storage, click Manage.

In the Cloud file storage pane, turn off the toggles for Box, Dropbox, Google Drive, and Citrix ShareFile. This will disable these services for all teams and users in your organization.

Click Save.

Now, Microsoft SharePoint will be the only cloud storage option for all teams. Users will be able to access SharePoint files from the Files tab in each team channel or from the Files app on the left side of Teams.

To ensure that when users dial emergency numbers, the call is routed based on the user’s current location, you need to enable the external location lookup mode in Teams. This mode allows Teams to use the location services of the device’s operating system to suggest an emergency address for the user. The user can then confirm, edit, or enter a new address, which will be used to route the emergency call to the appropriate Public Safety Answering Point (PSAP). Here are the steps to follow:

Sign in to the Teams admin center with your admin credentials.

Go to Voice > Emergency policies.

Select Add.

Enter a name for the emergency calling policy, for example, “E911WFH”.

Turn on External location lookup mode.

Select Apply to create the policy.

To assign the policy to the users who need it, go to Users on the left menu and select the users that you want to apply the policy to. You can use the filters or the search box to find them.

On the right pane, under Policies, select Edit next to Emergency calling policy.

Choose the policy that you created from the drop-down list and click Apply.

To ensure that only users from litwareinc.com can be added to Teams as guest users, you need to configure the guest access settings in Azure Active Directory (AAD). Here are the steps to follow:

Sign in to the Azure portal with your admin credentials.

Go to Azure Active Directory > External identities > External collaboration settings.

Under Collaboration restrictions, select Allow invitations only to the specified domains (most restrictive).

In the Allow invitations to these domains box, enter litwareinc.com. You can also add more domains if you want, separated by commas.

Click Save to apply the settings.

That’s it. You have successfully restricted the guest access in Teams to a specific domain. This means that only users with email addresses from litwareinc.com can be invited as guests to your teams. You can also prevent guests from being added to a specific team by using sensitivity labels1 or PowerShell2.

To prevent users from deleting messages posted in private chats and channels, you need to manage the messaging policies in Teams. Here are the steps to follow:

Sign in to the Teams admin center with your admin credentials.

Go to Teams apps > Messaging policies.

Select the policy that you want to modify, such as the global (Org-wide default) policy or a custom policy.

Turn off the following settings: Owners can delete sent messages, Users can delete sent messages, and Users can edit sent messages.

Click Save to apply the changes.

To ensure that when users join a meeting by using a phone, they are prompted to record their name, you need to enable the meeting entry and exit notifications in the Teams admin center. Here are the steps to follow:

Sign in to the Teams admin center with your admin credentials.

Go to Meetings > Conference Bridges.

At the top of the Conference Bridges page, select Bridge settings.

Enable the Meeting entry and exit notifications toggle.

Choose Names for the Entry/exit announcement type.

Turn on the toggle for Ask callers to record their name before joining a meeting.

Click Save to apply the settings.

To provide only Adele Vance with the ability to turn on and off Teams preview features, you need to create and assign a custom update policy for her. Here are the steps to do so:

Sign in to the Microsoft Teams admin center with your Microsoft 365 username and password1.

In the left navigation, go to Teams > Teams Update policies.

Select Add to create a new policy or select an existing policy to open Update policy.

Name the update policy, add a description, and select Enabled from the drop-down menu for Allow public preview. This option enables Teams Public Preview regardless of whether a user is enrolled in Office Current Channel (Preview). The end user must also opt in to Teams public preview in their Teams app2.

Click Save and then Close.

In the left navigation, go to Users and then search for Adele Vance from the list of users.

In the user details page, go to Policies and then click Edit next to Assigned policies.

In the Assigned policies pane, under Update policy, select the policy that you created or modified in step 4 from the drop-down menu.

Click Apply and then Close.

Now, Adele Vance can turn on and off Teams preview features by following these steps in her Teams app3:

Select the three dots to the left of your profile to display the Teams menu.

Select About > Public preview.

Select Switch to Public preview or Switch back to standard version.

To add a disclaimer to all Teams meeting invites, you can use the Exchange admin center to create a mail flow rule that applies the disclaimer to meeting requests. Here are the steps to follow:

Sign in to the Exchange admin center with your Microsoft 365 username and password1.

In the left navigation, go to Mail flow > Rules.

Click Add (+) and then select Create a new rule.

In the New rule pane, enter a name for the rule, such as “Meeting disclaimer”.

Under Apply this rule if, select A message header includes any of these words.

In the Specify header name box, enter X-MS-Exchange-Calendar-Meeting-Request. This is a special header that identifies meeting requests2.

In the Specify words or phrases box, enter True. This means that the rule will apply to any message that has the header set to True.

Click Add and then OK.

Under Do the following, select Append the disclaimer.

In the Specify disclaimer text box, enter the disclaimer text that you want to add to the meeting invites, such as:

Disclaimer: This meeting may be recorded for quality and training purposes.

Click Enter text and then OK.

Under Choose a mode for this rule, select Enforce.

Click Save.

Now, when you or anyone in your organization schedules a Teams meeting, the disclaimer will be added to the meeting invites automatically.