Solution : https://service.sap.com/sap/support/notes/117881 (SAP Service marketplace login required)
Key words :
prerequisites program bug solution advance correction, terms tstr_calc_time sd_scheduling reason, correct result incorrect resultone, requested start time falls, requested start time, incorrect starting date, symptom scheduling, working hours, -working period, -working period> +---------------------->
Related Notes :
| 118706 | TSTR_CALC_TIME Problems in 4.0A/B, 4.5A |