Hi Ramesan
These are the areas you should check
1. Allocation cycles (Assessment / Dist and COPA assmt cycles)
2. Asset Master,
3. OKB9,
4. Open PO/PR/Service entry sheets
5. OVF3
6. Substitutions (OBBH and OKC9)
7. Cost center groups
Expect to have some surprises even after ensuring all these points... Keep your fingers crossed
Br, Ajay M