Solution : https://service.sap.com/sap/support/notes/650720 (SAP Service marketplace login required)
Key words : 
solution import basis support package 29, basis support package 28, support package 03, buying center, graphical form, make sense, nodes overlap, jnet reason, arranged automatically, base component
Related Notes : 
       
| 651069 | SAPKU40002: Support Package 02 for CRM 4.0 | 
| 648438 |