Solution : https://service.sap.com/sap/support/notes/700729 (SAP Service marketplace login required)
Key words : 
constantirfmp                                        'x'obtyp              rimr0        mpoty_rspras              rimr0        mlangtxt 11, constantirfmp                                        ' 'obtyp              rimr0        mpotyspras              rimr0        mlangtxt 7, start transaction se11 -> view, tab page 'entry, measuring point object, reference functional location, reference measuring point, reference measuring points, rimr0 reason, structure rimr0
Related Notes : 
       
| 612965 | RMP(EA200): Retrofit reference measuring points |