Custom Field in SRM PO
we created custom field in SRM PO and I am trying to pass PO value in BBP_DOC_CHANGE_BADI method
BBP_PO_CHANGE using IV_MODE = 'C' and es_header-ztest = 'test' , but value is not getting updated
while PO is creating in SRM , we are in SRM 7 and SP 14 .
I want to update custom field value in SRM PO while PO is ordered,
is any other ways to achieve this..?
Thanks in advance,