Common O365 Account for CRM Online and SharePoint Online Integration

Hi,

We use Windows Live ID to login to CRM Online.  Our email and SharePoint online have Office 365 ID.

We are looking forward to integrate CRM and SharePoint.

Is it mandatory to create common Office 365 account for both CRM and SharePoint for integration...OR...we can continue with the above mentioned scenario.

Thanks in advance.

Saima