Profit center error in WPPUMS for empties article

Hi,

We have a scenario of using WPPUMS idoc when material document is created for 251 movement type.The profit center in accounting document are taken form main article.Where as if we use MIGO screen the profit center for empties is being taking correct.What are the settings which i have to do more so that the profit center is taken from empty article master for empties.

Thanks

Sachin