vendor batch and batch field on the inbound delivery

hi GUrus,

i have looked through most of the threads where the topic of vendor batch and batch on the inbound delviery has comeup. I'm specifically looking at a scneario where i would want to pass the on the batch number provided by the vendor on the IDOC to batch field on the inbound delivery. The reason for this is , i can look at the batch field in the confirmations tab of the PO, in the purchase order histroy tab of the PO, and also MMBE tcode. the material is also batch managed turned on in hte material master. But the issue is that even though i put the batch provided by vendor in the CHARG field on the ASN IDOC, it is still getting populated in the vendor batch field in the inbound delivery.

any ideas?

Thanks

Ravi