Organizations need to connect with a lot of people from in and out of their system. The priority here is to get things done, communicate easily and to collaborate in the best way possible. Guest access in Office 365 groups is something that delivers justice to organizations which want to connect their in-house team with partners, consultants or vendors. They can be granted access as a guest, and thus providing access to group notebook, conversations, files, calendar invitations etc.
SharePoint Online is a platform widely used by organizations to create business-to-business (B2B) extranet collaboration sites. Numerous external sharing features along with complimentary sharing features make SharePoint Online a great choice when it comes to a simple and secure B2B extranet site.