Solution : https://service.sap.com/sap/support/notes/1122266 (SAP Service marketplace login required)
Key words :
object if_ex_product_customer2~map_r3_to_crm_material, sample source code, material header level, documentation 'customer enhancement, interface method map_r3_to_crm_material, product status 'locked', material exist, product status ', customer namespace, activate interface
Related Notes :
| 428989 | Customer-specific enhancements for data exchange |