Can business units with different fiscal year ends consolidate together using one year end?

 

I work for a global company using PeopleSoft Financials for GL, AP and AM.  We currently have well over 600 business units on our system which each have a fiscal year end of 12/31.  We would like to bring another business group onto our system which has a March 31 fiscal year end.    Our GL is used for all of our allocations, consolidations and External Reporting.  Can business units with different fiscal year ends consolidate together using one year end, but individually close using two different year ends?  If so, what, if any, problems have you experienced?  Do you have