This post discusses how to pick up ecommerce product related values from the dataLayer and convert all the SKU values into a single string as a Custom variable. This can be done via Custom JS in Google Tag Manager.
![How to Pass Products Purchased as a Custom Variable [string] via Google Tag Manager?](https://images.squarespace-cdn.com/content/v1/5640e86be4b031347f7c7b81/1527876359082-NXXOWLZPWQTR32HKKVC5/transactionProducts+dataLayer+variable+Google+Tag+Manager.JPG)
All tagged doubleclick tags
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