Adding retargeting tag dynamically
Re: Adding retargeting tag dynamically
I know what you're trying to do, and I don't have the technical answer.
I don't think adwords retargeting is really geared up for that level of segmentation unless you're really good with code.
What you could do is create a list (A) for users who reach the basket review / checkout page who didn't then reach the next page (B). In this scenario if you have a list for B minus A you will get sort of close to what you're trying to achieve (targeting people who had something in their basket but didn't convert to sale, I assume).
Hope that helps a teeny bit.