Loading Roles to Existing User Base

Hello all, I am working on a 12.1.3 implementation.

My role is on Phase 2 which is Payables, GL, Assets etc

Phase 1 was HR and this was implemented in April. So the user base has already been created in the FND_USER/FNDSCAUS

So I need a way to load some Finance based roles to the existing user base.

The downside on this is that I have to allocate roles to in the region of 3k users

So I am hoping there is something speedy to allocate the roles. I was thinking about

• a pre defined API
• a script I would use via SQL Developer or TOAD etc