Solution : https://service.sap.com/sap/support/notes/650624 (SAP Service marketplace login required)
Key words : 
business partner bdocs bupa_main, attached source code corrections, makes sense, initial load, crm server, cdb subsequently, terms bp_exchange_crm_to_mobile, view vsmw3_00, customizing entry, crm middleware
Related Notes : 
       
| 752207 | BUPA_MWX_BDOC_PREVENT_UPLOAD does not work | 
| 638551 | Deactivating creation of BDoc messages | 
| 635697 | Activating/deactivating creation of BDoc messages |