need a fulfilment app processing sales from shopify, etsy and not on the high street VIA amazon

[trigg]

hey all, apologies if this is an obvious question, i cant see this answer anywhere. 

i am a uk vendor selling stationery (ThinkTrigg.com) on shopify, etsy, ebay, and not on the high street and i'm looking for a fulfilment app to process all these sales via amazon where we keep our stock.

eg: is it possible to link an etsy sale to shopify then have it be automatically fulfilled by amazon?

any suggestions? 

thanks in advance 

matthew