I recently took over some pre-existing banner ad code for EyeBuild server, and I just tweaked it and it worked. However, when the client submitted the files, they got back to us saying it has some reference to Sizmek code, that seems to cause issues with their server.
I'm a total beginner and it seems different banner hosts have different protocols in coding their ads. Is there a resource on which are the popular ad servers and is it possible to learn their particular code requirements? Is there an online service that teaches coding specifically for banner ads?
Would greatly appreciate any advice, tnx!