Why you just put long term in syste

Why you just put long term in system after run shortage by forecast?
I want to know you need trial or not? qty ?
If need ,please in put in system .

ผลลัพธ์ (อังกฤษ) 3:

Why you just put in long term system run after shortage by forecast?
I want to know you need trial or not?
If qty? need, please put in in system.