I've 2 O365 tenants and need to simply grant customers from the company tenant more than for the lover tenant for SharePoint On-line. The B2B looks like It will be the simplest, but does it help Sharepoint On the web. The one instance I see in MS docs is for https://edgarbtitc.eedblog.com/33215401/top-guidelines-of-b2b-wholesalers