Traffic a DoubleClick tag as a third-party creative

The best practice is to always book DCM tags using the 'DoubleClick tag' creative type. Using this creative type will save you from having to add any additional macros for click tracking and it will also keep the discrepancy of clicks between DCM and DFP under 2%.

It’s possible to traffic a DCM tag as a third-party creative to allow for additional formatting of the creative, such as the addition of a third-party tracking pixel. In these rare cases, you must manually insert both the DFP click and CacheBuster macros into the DCM tags in order to track clicks properly.

Here's an example of properly-formatted DCM tags (including the necessary macros) that can be pasted into the 'Code snippet' box in the creative's settings:

<SCRIPT language='JavaScript1.1' SRC=";sz=728x90;click0=%%CLICK_URL_UNESC%%;ord=%%CACHEBUSTER%%?"> </SCRIPT>
<A HREF="%%CLICK_URL_UNESC%%;sz=728x90;ord=%%CACHEBUSTER%%?">
<IMG SRC=";sz=728x90;ord=%%CACHEBUSTER%%?"
When a DCM tag is trafficked as a third-party creative, DFP treats the DCM tag as a third-party tag and therefore does not report clicks without the DFP click macro. Additionally, you should expect to see a larger discrepancy in delivery numbers, as you would with any third-party ad server.
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