Multi org

HI
I have this scenario
4 company with the same currency; calendar; chart of accounts
Which is the best practise, create only 1 sob and assign for each company a different legal entity or it is better to create a separate sob?
do you have any documentation about the best solution about sob?
TKS
Tiziana

hai ,
whenever the case arises with multiple currenecis or multiple calenders the Multi org come into picture,
even if u have 30 group of companies with same currency and same calender it's better to go for single org.only the thing is u have to set up security segments.if it's multi org the security is defalted.
let me know the queries if any ,
with regards,
manoj