how to set the table I_ORG in 'BBP_EXTREQ_INBOUND'?

dear all,

Now I am using BAPI 'BBP_EXTREQ_INBOUND' to create a shopping card and have successed.

but in the table I_ORG, whatever I set the value of organization ID and group ID, it will not be changed in the SRM.

how can I set them?

t hank you!