Solution : https://service.sap.com/sap/support/notes/598021 (SAP Service marketplace login required)
Key words : 
/3 customizing tableaccount group                  t077dcustomer-specific attributes   tvk1, tvk0nielsen id                     tnlscustomer classification        tkuklsales office, organizational managementsales district                 t171the, crm middleware download objects, support package 04for crm 3, sales group   provided, imported support package 14, /3 customizing tables, crm middleware, 0 support package 14
Related Notes : 
       
| 755107 | FAQ : Business partner replication ISU <--> CRM | 
| 666508 | No input help in CRMM_BUT_FRG0041 | 
| 663180 | Support Release 01 for CRM 3.1 | 
| 653691 | SAPKU31006: Support Package 06 for CRM 3.1 | 
| 629487 | CRM 3.0 / CRM 3.1: Functional Enhancements | 
| 628397 | SAPKU30015: Support Package 15 for EBP 3.0/CRM 3.0 | 
| 610994 | SAPKU31004: Support Package 04 for CRM 3.1 | 
| 609353 | SAPKU30014: Support Package 14 for EBP 3.0/CRM 3.0 | 
| 606214 | CRM_BUPA_MAPPING_3x: Incorrect sales group/sales office | 
| 605327 | Short dump in CRM_BUPA_MIGRATE_30 or CRM_BUPA_MIGRATE_31 |