Changing an Existing Calendar from Fiscal Year to Calendar Year.

1. Our company will GO LIVE using fiscal year but will change to calendar in a year or two. is this possible in oracle fusion? if yes, what are the setup steps?

2. Is it possible to change an existing calendar (in fiscal year) to become a calendar year? if yes, how? if no, then do we need to create a new calendar for the calendar year?

3. If we need to create a new calendar then we need to create a new ledger? (because we cannot edit anymore the accounting calendar of an existing ledger)

4. In Assign Business Functions page (BU setup), the primary ledger field is still editable. However, based on MOS ID: 2317513.1 Oracle highly recommends not to change the ledger for a business unit because of errors.