We want to insure that our ecommerce tracking is working properly for Google Analytics, Google Adwords, Bing Ads & Facebook Ads for both desktop and mobile devices. Some of this work has been done in the past, and in the course of time many hands have disrupted the existing code. We are now looking to take a fresh approach. We would like to utilize the Google Tag Manager to manage all of these tags (if possible). Additionally we have the need to track ecommerce transactions across subdomains. For instance, we have an Adwords ad which points to a landing page at http:// promo.optihealthproducts.com/isotonicopc when a prospect clicks on the <order now> button on this page they are sent to our ecommerce site where they are able to order the product. When this happens we need to be sure the Adwords Ad, Bing Ad, or Facebook Ad which triggered the sale is appropriately attributed back to that Keyword and Campaign in their respective system. Again ideally we would like to utilize Google Tag Manager to implement and track all of this.
We have also recently started using Google Adwords Remarketing and would like to configure this so it is using Google Tag Manager as well.
Budget up for negotiation.