it depends what you mean by campaign. Adwords or custom campaign?
In the adwords section of Traffic Sources you can only see total ecommerce revenue for each adwords/ad group campaign and not individual transactions (product purchases). If you want to see traffic sources for each transaction then you would need to add an advanced filter to provide this info for you.
check out www.roirevolution.com/blog/2007/05/matching_specific_transactions_to_specific_keyword.html
thanks for the filters sample code, that may be a solution.
our newsletter contains utm_campaign=sample in the link. now i would like to see the list of products that were sold through this campaign.
traffic sources > campaigns will give only totals but won't indicate what products were sold. mind you, there is an option to see all campaigns per sold products but we have too many products to go through each manually every time we send a newsletter.
anyone else run into similar problem with g analytics?