Solution : https://service.sap.com/sap/support/notes/1324656 (SAP Service marketplace login required)
Key words :
contact creation failed reason, contact creation failes, sales contact null, duet admin page, terms duet, error message, monitoring crud, empty string, prerequisites, characters
Related Notes :
1352811 | 1.5 SP2 SAMA .net/Java fixes Composite note |