Cannot install Skype For Business Online Powershell

If you trying to install "SkypeOnlinePowerShell.Exe", following guide on Microsoft site: https://docs.microsoft.com/en-us/skypeforbusiness/set-up-your-computer-for-windows-powershell/download-and-install-the-skype-for-business-online-connector,
and you are getting error about VC ++ minimum version 11.0.5727, you need to install EXACTLY this version, apart from your versions already installed on your system.
So, go to the below link and install it first:
http://download.microsoft.com/download/1/6/B/16B06F60-3B20-4FF2-B699-5E9B7962F9AE/vcredist_x64.exe
Then you should be able to install SkypeOnlinePowershell

O365: Skype for business 2016 - GPO for switching off splash screen

When you need to disable splash screen for users you, can apply group policy with preferences/register settings adding this key:
HKCU\Software\Policies\Microsoft\Office\16.0\Lync\DisableSplashScreen
with value of 1.
Additionally, you need to have update installed:
https://support.microsoft.com/en-us/help/3128049/january-3--2017--update-for-skype-for-business-2016-kb3128049

Source:
https://support.microsoft.com/en-us/help/3213034/option-to-suppress-the-skype-for-business-2016-startup-splash-screen

Azure: Azcopy error : Failed to validate destination

When you try to upload files into Azure using AzCopy command line you ca encounter this error:
Failed to validate destination: One or more errors occurred. The remote server returned an error: (404) Not Found.

Before you start pulling hair from your head just uninstall new version of AzCopy and install an old one.
For me, the latest working version is 5.0

Migration between two Office 365 tenants

In the era of cloud solutions, soon or later we will face the challenge of connecting two of them together. Merges and acquisitions of companies which possess separate cloud IT infrastructure needs to be joined, unified and also simplified if possible.

Using experience after few successful migrations, I will try to explain here the most important things to consider in similar projects, when Office356 is involved.

This is not step by step instruction – only lessons learned from the migration field.

At the beginning - things which appears every time you plan a change in the organization.

Determine customer expectations and goals

The most important thing, which – when chasing for time and money some people forget - the success of the project depends on the fulfilment of customer expectations. Dot.

More you can read at the Gooroo site:

https://gooroo.io/GoorooThink/Article/17097/Migration-between-two-Office-365-tenants/latest

Office365: Removing all Exchange aliases from user accounts - moving from/to O365

In order to remove the domain form the Office365 subscription,  you need to delete all aliases.
There are many articles on the subject, how to remove one alias, but no data about how to remove ALL aliases from ALL accounts.
This little script will help you when you need to move to another O365 tenant or from cloud to on premises Exchange.

$alias = Get-Mailbox -resultsize unlimited

foreach($x in $alias)
{
$x.emailaddresses = $x.userprincipalname
Set-mailbox $x.alias -emailaddresses $x.emailaddresses
}

Office365: Change public folder default quota limit

Hi,
In the Exchange Organisation, there are quotas per Public Folder mailbox for the items ...

..and as a whole organisation:

If you receiving warnings about quota when using public folder, then you need to change organisation wide settings. For this example we have had DefaultPublicFolderIssueWarningQuota set to 1.7GB and DefaultPublicFolderProhibitPostQuota set to 2GB.

Now, we change it to 35 and 40GB respectively:

And all is set now!

Office365 Outlook: Send as right does not work

After adding Send As rights in the Office365 Exchange portal, do not expect that Outlook will work with these permissions automatically.
It needs time to propagate changes and download fresh copy of Offline Address Book.
You can try to speed up the process by:
1.Deleting old entry of address from the FROM field in Outlook (delete auto-complete hint)
2.Getting fresh copy of OAB (Outlook, Send/Receive, Send/Receive groups, Import address book)
3.Wait...and try again if it does not work. Remember it could take 24-72 hours to propagate changes in OAB