Solution : https://service.sap.com/sap/support/notes/401437 (SAP Service marketplace login required)
Key words :
purchase requisition i_s_general-bnfpo line item number, purchase requisition i_s_general-konnr document number, i_s_general-banfn document number, contract i_s_general-kmeinh unit, additional key words mdr10001, function module md_einzelrundung, exit_saplmdr1_003 exit_saplmdr1_004 exit_saplmdr1_005, customer-specific enhancement, purchase requisition, quantity optimization depending
Related Notes :
303613 | Missing documentation on enhancement MDR10001 |
301105 | Unwanted rounding to rounding value (ME386) |