Doubt with HR replication in SRM.

Dear Gurus,

We are in SRM 5. We have an Org. structure that was created and now is maintained manually.

Now, our customer have a new requirement, replicate the Org. structure from HR SAP system in SRM.

I hava some doubts about this. It's possible replicate the org. structure from HR if already exists another one previously? If is possible, What steps are needed?

Many thanks in advanced.

David.