Hi, every item in CRM can have a image, like: 

Is there is a way to import all the images? and keep them updated? if I have a server with those images identified by one of the other values of a field "item_id" and the image is www.server.com/images/item_id.png how could I update all my entries? 

I tried with Client scripts but it seems to be sandboxed so I cannot change the image itself

Do I need to do a scheduled task and use the image upload api and change that image field?