Placing automatic orders on AliExpress

When the customer pays for a order on my site I am having to go to AliExpress and process each order. How do I make it where when the order is placed on my site it is also processed on AliExpress without me having to do anything?

Also it is showing on google shopping that I have I have “Free delivery by tomorrow” which is not the case and I cannot find anywhere where to change it.