Native Groups Equivalent in OAC?

Summary

Native Groups Equivalent in OAC?

Content

Is there a way to import an on prem's shared service groups and users into OAC (or, more specifically, IDCS)? My client is moving from Essbase on prem to the cloud, but doesn't want to have to re-populate their groups in the cloud, but i'm thinking that the best/only way to achieve parity between the two.