Enable anyone links on Teams and Office365 groups

ExternalUserAndGuestSharing.ps1

# As a default, sharing links with anyone is disabled on Office 365 groupSites, which in turn also means Microsoft Teams Sites.
# Even if you have Anyone sharing enabled at the tenant level!
# This script can help y remove that requirement from a specific site.
# MIT licensing, keep author credits if reusing
# Author: Michael Mardahl @michael_mardahl on twitter
# https://github.com/mardahl

Install-Module -Name Microsoft.Online.SharePoint.PowerShell
ipmo Microsoft.Online.SharePoint.PowerShell

$tenantName="contoso" #should be what comes before .onmicrosoft.com

Connect-SPOService -Url https://$tenantName-admin.sharepoint.com

Write-Host "Now is time to select the sites you want to enable guest/anyone sharing on (ctrl can be ued to select mutiple)."
$sites = Get-SPOSite | Out-GridView -PassThru

#now enabling the creation of anyone links
foreach ($site in $sites){
  $site | Set-SPOSite -SharingCapability ExternalUserAndGuestSharing
}
Write-Host "Done!"