The startup I consider joining is not building an ERP system itself, but rather something that will need to get the data from an ERP system. So I am trying to g

The startup I consider joining is not building an ERP system itself, but rather something that will need to get the data from an ERP system. So I am trying to get a sense of the field before I sign up, not even really knowing which question to ask... My concern is that if the ERP schemas turn out to be sufficiently diverse in practice, the startup might end with high per-user implementation cost, effectively turning into a consultancy.