How advantageous can it be to build your SaaS around SAP (or any other ERP providers) and be an SAP/Oracle partner (I will not promote)

Curiously asking about a potential Saas, not in conflict/competition at all with SAP or any other ERP providers for that matter, but more of an extension to services offered, attempting to aid and further enhance an experience or correct an issue within a certain area. Moreover, how advantageous can it be to be a SAP/Oracle/Workday partner?