Solution : https://service.sap.com/sap/support/notes/846258 (SAP Service marketplace login required)
Key words :
create default characteristic values, specification managementyou set, terms ehs32sp10psehs2004sp09ps reason, default-usages, symptom component, product safetymodule, inheritance relationship, usage profiles, prerequisites reason, program error
Related Notes :
| 1041229 | Default value displayed when you choose Enter despite change |
| 916541 | Usages of identifiers duplicate after copying |
| 840875 | ALE: You cannot update specifications |
| 821339 | "Characteristic & does not exist" for "Copy template" |
| 789553 | Problems w/ default values in table-based assignment |