Business Package Upgrade

All,

We currently have an ESS/MSS Business package working on EP6 SP16 system and are looking to upgrade our portal to EP 7.0 SPS 11. We were had the following thoughts and have been looking for answers, if some could help us with our questions it would be greatly appreciatd.

- Do we need to install a new Business Package for ESS/MSS after the upgrade?

- Is it possible to migrate our current ESS/MSS business package from EP 6.0 to EP 7.0.

- Can the same business package work on both EP6.0 and EP 7..0

- Any thoughts we need to keep in during the upgrade that would effect ESS/MSS.

Thank you.

SAP Partner