deriving partner profit centre

hi friends ,

i have a requirement ie. to derive a partner profit centre for intercompany transactions.

first create a stock transport order and create an outbound delivery number

when issued PGI(post goods issue) the BADI should trigger and derive partner profit center based on trading partner and profit center.

if there are multiple profit centers in a company code the badi must split the lines for the multiple partner profit centers.

my problem is how to split the lines in a badi

the badi name is FAGL_LEDGER_CUST_DEFPRCTR

please help me in this issue

regards

srinivas