Player issue: Integrate entry metadata into pre-roll url

I want to put some values from entry metadata (like description), into the parameters I send in the pre roll ad url.
But the pre roll seems to fire before the metadata is being loaded, is there a way to do that on the fly?


Hi Ofer,
Are you using DoubleClick of VAST plugin?

Hi Amir,
its about the VAST plugin

Hi Ofer,
You can use evaluated expressions within your adTag URL so your VAST configuration can have something like:

"prerollUrl" : "{mediaProxy.entryMetadata.customField}partial_url.xml"

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HI Amir,
Thank you. That is exactly what I needed.