Me_process_po_cust check example

sap note 803749
how to implement badi me_process_po_cust
message no mepo151me_process_po_cust process_item
data from business add-in me_process_po_cust not adopted
how to debug me_process_po_cust
mmpur_remove_msg_by_context
me_process_po_cust check set_data

Try with badi ME_PROCESS_PO_CUST, method CHECK and use a coding as this: this is the sample code for Item check, by using MM_MESSAGES_MAC(include u canExample of implementation of BADI ME_PROCESS_PO_CUST sample code for checking long text and issuing errors. - BADI ME_PROCESS_PO_CUST. We create an implementation of BADI ME_PROCESS_PO_CUST to UPDATE/overwrite As per the message description, we check if field FKBER exists in any of the BADI ME_PROCESS_PO_CUST PROCESS_HEADER (Control Header Text) I have is the PROCESS_HEADER is only called again when for example quantity is changed.