Dear Kapil,
I looked into your issue, Its seems the process you are following is standard and SAP best Practice.
I'm not pretty sure whether you are following below process or not. Incase, No then please have a look below steps and let me know whether its helps.
You have a deal created for 31.08.04, need to settle early(Early Delivery), Please use FTR_EDIT and enter company code and deal number(deal created for 31.08.2014) then select Premature settlement, it will automatically take the system for both transaction(103 & 105)
Rest process hold the same.
let me know in case you have any further query.
Regards,
jain