Solution : https://service.sap.com/sap/support/notes/1010866 (SAP Service marketplace login required)
Key words :
terms ehs32sp14psehs2004sp17psehs2005sp11psdatabase inconsistenciesestvhduplicate entriesduplicate estvh recordsc$ 227, specification managementtwo users open, estvh-estcat optional, prerequisites reasonthis problem, call transaction se37, i_estcat_curr_context type spec, function module c1a3_estvh_buf_read, attached correction instructions, table estvh, function module
Related Notes :
| 945996 | "Cancel" does not discard new characteristic values |
| 885472 | Parallel processing of properties possible |
| 863769 | Inherited value assignment instances not immediately visible |