Please emphasize your team to write down the all details through mail . not verbally .
For example : Can MP check and advise purchasing how many pcs they do really need to use on 22/7 or Need ALL in 1 po ?
CTN; 5032037002 Start date 22/7/16 ไม่สามารถเลื่อนได้ค่ะ
Even I did double check to her ( but I just did not ask for pcs to be need ) , here is her answer to me
Reconfirm CTN; 5032037002 ใช้ 22/7/16 ค่ะ