Sap EP Upgrade from EP 6 to EP7

Hi Experts,

Please provide information on the post upgrade activities to be completed apart from upgrade guide contents .

Source-->Sap NetWeaver EP 6.40 Backed application used is ESS and MSS

Target--->Sap Netweaver 7 EHP2

And do we require to update license key after the upgrade from Sap netweaver 6.40 to Netweaver 7 EHP2 as this is not mentioned as a part of follow activities...

So please provide the best practices doc for post upgrade steps to be carried out from both Basis and EP Perquisite

Thanks,

Avinash