Solution : https://service.sap.com/sap/support/notes/495264 (SAP Service marketplace login required)
Key words :
change customer-specific fields, copying manual pricing elements, purchase order transactions me21n, purchase order transaction, account assignment category, purchase order item, delivered condition tables, define additional conditions, price determination depends, terms price determination
Related Notes :
| 633534 | ME21N BAdI functions are not availabe |
| 625819 | Enhancement for US tax calculation |
| 501054 | FAQ: Taxes in purchasing |