Solution : https://service.sap.com/sap/support/notes/513313 (SAP Service marketplace login required)
Key words : 
'sap service marketplace' -> 'mysap crm' -> 'media library' -> 'documentation' -> 'key capabilities' -> 'sales' -> 'field sales' -> 'data exchange, xtable tps34process   function module         product-----------------------------------------------------------------smoutil2  crm_bupa_opfi_smoutil2  product, event     product                            function module------------------------------------------------------------------de_bale   product, crm online business partner data model, download customizing download object cnl_t171t, table crmc_but_call_fuevent            object          item      function, business partner 2000010   crm_bupa_crmin_vtber    xcrm outbound, product                   text                              active------------------------------------------------------------------product, business partner 2000010   crm_bupa_crmout_vtber  xc, field knvv-bzirk
Related Notes : 
       
| 824934 | Correction of note 756577: Wrong sales area selection | 
| 651877 | @3Z@ Incorr data in customer master during data exch w/ CRM | 
| 631683 | User exit SMOUTIL3 does not work | 
| 626276 | Correction for Note 513313 | 
| 617221 | PIDE not taken into account in user exit DE_BCS2S | 
| 561267 | Correction for notes 529920/513313 | 
| 524255 | Workaround solution Multiple Hierarchies CRM 3.0 | 
| 504169 | Different data models in R/3 and CRM |