Account Assignment Data for 'Unknown' Category

Hi All,

For Amount/Limit shopping cart line when the account assignment is selected as 'Unknown', the structure E_ACCOUNT in BADI implementation of BBP_DOC_CHECK_BADI ( For BUS2121 ) is empty.

Where as when the account assignment is selected as 'Known', the structure E_ACCOUNT is filled with account assignment data.

In what can I read/enable the account assignment data when the account assignment is 'Unknown', Based on this I need to trigger an warning message.

Thanks,

Depp