Solution : https://service.sap.com/sap/support/notes/662184 (SAP Service marketplace login required)
Key words : 
source object type bus1178, relationship type prdloc, download object material, message number com_il015, transaction smw01 occurs, bus1178 reason, transaction r3ac1, validation error, data exchange, entry marc
Related Notes : 
       
| 677456 | SAPKU40003: Support Package 03 for CRM 4.0 |