There is one filed in srm category id "CATEGORY_ID" which has to send to backend system into Purchase Order (ME23N).
In PO(ME23N) --> Material Data --> EAN/UPC in this field the value of category_id should be populated.
1) BBP_ECS_PO_OUT_BADI (Extended Calssic) "IT_ITEM-CATEGORY_ID"
2) BBP_CREATE_BE_PO_NEW (Classic) which is in the structure "IS_SC_DOCUMENT-CATEGORY_ID"
1) EKPO-EAN11 field
The creation of PO is done by RFC FM: BAPI_PO_CREATE1
which is having structure for items BAPIMEPOITEM which is not having EAN11 field.
Can any body help me..
Thanks and regards,