Link between WM and Material Document (LQUA and MSEG)

Hi,

Can anyone tell me, how can i link from LQUA to MSEG.

there are two fields in LQUA named BTANR and WENUM that contains Material Doc number sometime!!

I said "sometime" because, if i transfer stock from a stock address to another one (LQUA-LGPLA)

the fields contains Transfer Order number (TANUM)

I have Batch Number (CHARG) in LQUA and MSEG, but this cause low performance.

is there any another solution from CHARG ?

thanks in advance