When setting up your product collection on our app, we've found that meeting the following requirements tends to prevent technical issues:
Use a 400x400 or 500x500 pixel image
Use .jpeg file type
For your product image, it is entirely up to you whether you want to upload a brand logo or a product image. Generally speaking, if your brand is not well-recognized, a product image may be more effective in driving traffic.
Note: We currently do not support editing creatives in our app because Amazon has not made this capability available through their API. More on that here.