Solution : https://service.sap.com/sap/support/notes/211789 (SAP Service marketplace login required)
Key words :
additional key words nr16, message n4445 'time slot, appointment - overwrite field bwizt, source code repair, appointment time, time slots, double-click, appointment data, appointment move', scheduled duration
Related Notes :
| 153153 | IS-H: Composite note on important errors in 4.03A |