Solution : https://service.sap.com/sap/support/notes/489087 (SAP Service marketplace login required)
Key words : 
attached source code corrections, business partner relationships, terms bp_exchange_crm_to_r3 reason, contact person address, contact persons, solution implement, note assistant, prerequisites
Related Notes : 
       
| 537486 | Composite SAP note:perfrmnce problms during initial download |