Create a Microsoft account
To create a Microsoft account associated with the email address of the company:
Visit the Microsoft account.
Click Sign up now, and follow the instructions to create a new Microsoft account.
Once you have entered or completed the registration procedure, the local administrator or a global network of partner companies you have to send an invitation from Managing partner membership center of the page.
When you receive an invitation, follow the instructions in Microsoft's email account associated with your company partner network membership.
Why do you need a Microsoft account to join the Microsoft partner network
You need a Microsoft account associated with your corporate email address to join the Microsoft partner network and access secure content. Microsoft account allows you access to the appropriate place on the website of Microsoft's partner network and partner membership center.