Solution : https://service.sap.com/sap/support/notes/196522 (SAP Service marketplace login required)
Key words :
error message n4615 'planning object, additional key words nr14, empty time slot time, effective deadline entry, empty appointment date, planning object, time slots, empty values, planning objects, visit scheduling
Related Notes :
| 153153 | IS-H: Composite note on important errors in 4.03A |