I've 2 O365 tenants and wish to easily grant people from the corporate tenant in excess of on the companion tenant for SharePoint Online. The B2B seems like It will be the easiest, but will it help Sharepoint Online. The only real instance I see in MS docs is for https://b2bagents96159.jiliblog.com/89979426/b2b-partnerships-things-to-know-before-you-buy