Solution : https://service.sap.com/sap/support/notes/372606 (SAP Service marketplace login required)
Key words :
proportional font reason, enter abbreviation 'tx', include unformatted text, individual text objects, standard form system, message parameter maintenance, standard system, form system, standard texts, text object
Related Notes :
| 628346 | ME21N: Enabling additional text formatting |
| 457497 | FAQ: Message processing in purchasing |
| 448814 | FAQ: Texts in purchasing |
| 361901 | SAPscript/Smart forms: Formatted texts |
| 60809 | Texts in purchasing: Change to style/layout set |