Trying to figure-out if it's possible to allow for non-AD users from a custom CRM system (where users credentials are stored in a custom SQLServer DB) to login with their credentials on SharePoint online!?, without creating a new credentials for O365 or even on the customer AD domain.
Was looking at "Azure AD Connect", but not sure if it's would be a good fit!!.
Is it even possible to have a proper sync. with non-Active directory users for SharePoint online?, what are the alternatives if any?.