Hello Rahul,
I see that the IM is already in active status. So, as long as the material - location combinations for which you intend to CIF the stock has been selected in the initial variant, then those stocks would have got CIFed to the corresponding APO system. In the CFM1 screen when you were generating the model - I hope you did select the necessary "Stock" elements. There are different type of Stocks like Customer Stock, Vendor Stock, Storage Loc stock etc.,
You may also randomly check the stock situation between MD04 in ECC and /SAPAPO/RRP3 in APO.
Hope this helps.
Thanks & Best Regards,
Babu Kilari