VBA复制粘贴文件夹中的所有文件

My macro is running well since 2 months but now I need some help for another issue. We are running an controller on our server which is sending mails to our customer with attached pdf. Now this controller and my macro are running sometimes at the same time and when my macro is creating pdfs the controller wants to send it but is not able to do so because its already in creation. Now I thought the macro could save pdf into another folder and after that it will copy paste all files into the right folder for sending.My macro is running well since 2 months but now