To allow people outside your company to work in a Seamless Workspace, they need a Microsoft or Office 365 account.
In this example we show how a user without an Office 365 account can create a new Microsoft account using his or her business email address.
Sign-up for a Microsoft account
Open https://signup.live.com/ in your webbrowser and fill in your primary business email address.
Type in a new and secure password and click "Next"
Type in your name and lastname and click "Next"
Select your country and birthdate. Click "Next" to proceed.
You have now received a verification email with a verification code. Copy & paste the code from the email and click "Next".
Your Microsoft account is now ready.
To access a Seamless Workspace, the workspace manager has to invite you.