Hello Vivek,
Open PR's and PO's :- You have to take care all PR's & PO's ,whcih are open till golive date as follows.
1. Do derivation rules as per your customization / business rules :- FMDERIVER
2. Run FMCN to create worklist FM account assignment objects all PR's first (Open PR's)
3. Run FMCT to update FM account assignment for above worklist
4. Run FMCN to create worklist FM account assignment objects all PO's (Open)
5. Run FMCT to update FM account assignment for above worklist.
6. Do FMJ2 for all PR's and PO's till March 31st ( Open PR's and PO's carryforward to 2014 Year)
7. Make sure busget available at FM account assignment level.
Regards
Mani