Checklist -- Requirements of Client

Few of the clarifications needed for setup data (HCM) :
I will keep adding more list items as and when found..

1. understand the number of and values of SETIDs and BUs
2. no.of companies
3. no. of countries
4. is it a multi lingual implementation?
5. aprroval hierarchy
6. when managers are in LOA, what will be the route for approvals
7. security
8. portal changes needed? (like Logo, header level changes, etc)
9. current no.of employees in the organisation (can be an estimated value)
10. third party/ vendors