Configuring Teams to Allow Guest Access

Check below settings in O365 different services for Configuring Teams to Allow Guest Access

Head over to your Microsoft Office 365 Admin Center
Under Admin Centers, select Teams & Skype (previously you needed to go to Settings > Services & Add-Ins > Microsoft Teams)
Go to Org-Wide Settings
Under External Access, you can enable this if you want to let your Teams and Skype for Business users communicate with users that are outside of your organization. You can also whitelist specific domains here.
Under Guest Access, you’ll want to turn on Allow Guest Access in Teams
You can enable or disable the other options as you need to




Configure Office 365 Groups to Allow Owners to Invite Guests and External Users

Go to your Microsoft Office 365 Admin Center
Go to Settings > Services & Add-Ins > Office 365 Groups
Turn on the settings for Let Group Members Outside The Organization Access Group Content and Let Group Owners Add People Outside The Organization To Groups



Configure Settings in Azure AD

Go to your Azure Portal
Go to Azure Active Directory
Under the Manage section, click on User Settings
Click on the link under External Users that says Manage External Collaboration Settings
Turn on Members Can Invite


Configure Sharing in Office 365

Go to your Microsoft Office 365 Admin Center
Under Settings, go to Security & Privacy
Click Edit next to Sharing
Turn on the setting for Let Users Add New Guests To The Organization
From here, you can also click on the Site Settings link to verify your Sharepoint settings and verify who your users can share with


Configure External Sharing Options in Sharepoint

Go to your Microsoft Office 365 Admin Center
Under Admin Centers, select Sharepoint
Go to Sharing and select the appropriate options for Sharing Outside Your Organization

-- 
Naufil Mirsinge
Sr. Exec - Mailing: CS
Phone: 7021635622
Whatsapp: 9167456833