Hi Ahmed,
It's not clear whether your MTO is with or without sales order costing.
Anyway,
with sales order costing, the FG price at the time of GR will be determined on basis of sales order costing variant.
1. Create sales order
2. Do sales order costing within the SO or in CK51n (Order BOM costing)
3. Create production order wrt SO
4. GI/GR/Confirmation
5. Period end activity on Production order - Variance, RA settlement
6. Period end activity in sales order - RA, settlement
Without sales order costing, the FG price at the time of GR will be the MAP (or on basis on OPK9)
1. Create sales order
3. Create production order wrt SO
4. GI/GR/Confirmation
5. Period end activity on Production order - Variance, RA settlement
6. Period end activity in sales order - RA, settlement
Hope this helps.
Get back for more specific inputs
BR
Abhi
PS: Moving avg price for FG is not recommended