I realized your side having more careless mistakes. This may delay our order process.
We seeking your cooperation as over here we have limited manpower and all Sales teams (including you and me) are busy.
So when you put down instruction or request, please read these information to confirm they are clear and valid.
Any wrong order, correction will lead to extra timing and cost incurred.
Unlike customers, our colleagues in sub offices should be well trained. Hope your team can be more alert to minimize such mistake.
Maybe you should revise the PO format, i think it has too much info and description(?)