Primary Secondary Conversion level for different Calendars

Summary: Primary Secondary Conversion level for different Calendars

Content (required):

We have one Primary Ledger & one Secondary ledgers, everything is same across both the ledgers including currencies however the calendars are different.

Primary Ledger-> Calendar (July to June)

Secondary ledger-> Calendar (April to March)

Now in the above context, what is the suggested Conversion level between the two ledgers? For example if we opt for 'Subledger Level', do you see any challenge in that ? How those transactional data for those three months in primary ledger (Apr, May, June) , hits in the secondary ledger? In the next FY calendar ?

Version (include the version you are using, if applicable):