Solution : https://service.sap.com/sap/support/notes/1629413 (SAP Service marketplace login required)
Key words :
import manager configuratio option -> autolink attribute, running mdm import manager, mdm import server, link attribute values, main table records, valuex exception folder, accept trancated values, attribute values, import fails, taxonomy solution
Related Notes :
| 1490871 | Import value exception on taxonomy attribute values |