Can the users and roles be provisioned through Fusion

Summary

If PBCS and Fusion are on Same Identity Domain, can the role be provisioned through Fusion

Content

I am asking if we can auto assign PBCS related roles in fusion and it will automatically be applied when User goes in PBCS.

The question is for the case when we have both PBCS and Fusion on Same Identity Domain as we certainly don't need to create IDs as far as I know.

Please help. Or whats the best way to automate the role assignment and user creation in PBCS.