Solution : https://service.sap.com/sap/support/notes/355429 (SAP Service marketplace login required)
Key words :
'blank' text type 'create case', additional key words va01, blank text types, single-step navigation, text types, language key, tree control, program error, solution implement, attached correction
Related Notes :
| 326668 | Several errors in text maintenance --> WDTTREE |