Exchange Online GAL

Check Offline Addressbook default: 

Get-OfflineAddressBook | select Name, IsDefault

Check Autodiscover (Web) is ok: 

Get-OfflineAddressBook | select Name, VirtualDirectories, *web*

 

Get-Help New-AddressList [-Full | -Detailed | -Examples]

New-AddressList -Name ‚All company users‘ -IncludedRecipients ‚MailboxUsers‘ -ConditionalDepartment ‚Development‘ -Container ‚\‘ -DisplayName ‚All company users‘

 New-GlobalAddressList -Name ‚Company GAL‘ -RecipientFilter „(RecipientType -eq ‚UserMailbox‘)“

 

Set-AddressList

Set-GlobalAddressList

Set-OfflineAddressBook