Solution : https://service.sap.com/sap/support/notes/495348 (SAP Service marketplace login required)
Key words :
dialog box 'processing mode, 'processing mode' dialog box, system processes message, terms mass reason, call text symbol 006, system selects, text symbol 006, mass maintenance, selection condition, newly created
Related Notes :
494672 | Create new segments: Cancel does not work |
133612 | Mass Change Tool - Downgrade to Release 4.0B |