Schedulig agreement (Subcontracting)GR cancell

Hello

I have facing one problem.

In scheduling agreement, document type is LPA, and i made this for Subcontracting purpose, in this iam not using creation profile.

i have made two scedule lines for dated 27.08.2007 and 28.08.2007 and explode BOM.

After that, using MB1B trsfer the materials to Vendor (movtype 541)

and the go for MIGO (101),

now problem create

After one day i cancel the material document with help of MBST (mov type 102)'

what child components provided to vendor, in that some components are Inhouse production, (material price is STD) why this materials are hitting the Account key PRD.

material doc(101) and material doc (102) values are not matching why.

regards

sapman