Use FM BBP_PD_PO_UPDATE.Make sure to pass in an 'S' for the value for final_inv flag on your items table. Sending an 'X' in for that value will not set it, b/c of the following logic that the BBP_PD_PO_UPDATE hits in include LBBP_PDIGPF14:mix up fin...

Take a look at SAP Include LBBP_PDIGPF14 where those flags are set:mix up final entry/ invoice ind for change versions (very complicated)IF p_object_type EQ c_po.CASE new_itmigp-final_entry.WHEN c_on OR c_off.new_itmigp-final_entry = old_itmigp-final...

"It is working fine in our system for Tax Code update as well but it is not updating FINAL_ENTRY and FINAL_INV Indicators."Take a look at SAP Include LBBP_PDIGPF14 where those flags are set:mix up final entry/ invoice ind for change versions (very co...