This is the click declaration Foldwrap writes into an HTML5 export for Google Ad Manager, with a placeholder destination. Copy it into your own creative if you are hand-building the banner.
Google Ad Manager clickTag
var clickTag = "https://www.example.com/landing";
Google Ad Manager sets the destination at trafficking time, so an empty value in the exported file is correct and expected.
Why Google Ad Manager rejects a banner
These are the rules Foldwrap checks a package against before it is delivered to Google Ad Manager. Each is derived from the requirements above, so a constraint Google Ad Manager does not state is not checked and is not listed.
errorad.size meta tag missingAdd <meta name="ad.size" content="width=300,height=250"> to the head.
errorClick is not wired for this platformDeclare clickTag in the creative and open it on click.
errorExceeds size limitCompress images, subset fonts to the glyphs actually used, and drop unused assets.
errorNo entry HTMLAdd index.html at the ZIP root.
errorReferenced asset is not in the packageRe-export the creative so every referenced asset is bundled.
warningad.size does not match the creativeRe-export so the declared size matches the canvas.
warningElement destinations flatten hereKeep a target that supports element destinations in the set, or set a default click URL that suits every element.
warningExternal reference the platform discouragesBundle the asset inside the ZIP if you can; Google Ad Manager publishes no list of hosts it accepts.
warningNested archive detectedUnpack the inner archive and re-zip a single creative.
Foldwrap runs these checks on every package it exports for Google Ad Manager, and names the creative and the constraint when one fails.
Sources
Every figure above, with the document it came from and the date we read it.
An HTML5 bundle or the total size of extracted files cannot exceed 1MB.
What is the maximum file size for a Google Ad Manager HTML5 banner?
Google Ad Manager accepts an HTML5 package up to 1 MB zipped or unzipped. Note what the cap measures: a bundle can compress under the limit and still be refused if the figure is taken unzipped.
How do I set the clickTag for Google Ad Manager?
Declare clickTag in the creative. Google Ad Manager replaces the value when the ad is trafficked, so exporting with an empty destination is normal and correct.
Can a Google Ad Manager banner have more than one clickable link?
No. Google Ad Manager takes a single click destination for the whole banner, so every click goes to the same page regardless of which element was clicked.
Can a Google Ad Manager banner load fonts or scripts from a CDN?
Google Ad Manager asks you to avoid loading essential parts of the creative from an external host, but publishes no list of hosts it accepts and no outright ban. Bundle what you can inside the ZIP; treat anything left outside as a risk you are choosing.
