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Xandr RTB error 203: Creative Filtered - Size Not Allowed

XandrExpanded via ${AUCTION_LOSS} in lurl

What Xandr says

The size was not allowed.

Xandr reports this integer in the ${AUCTION_LOSS} macro on the bid's lurl. A search for Xandr RTB error 203 is this code.

What was checked

Xandr uses this OpenRTB number. The exchange compared the creative's pixel size with the sizes on the impression. For a banner that is banner.w and banner.h, or any pair in banner.format. Video uses video.w and video.h.

What to change

Send a size the impression listed.

The same number in OpenRTB

OpenRTB loss reason 203 is Creative Filtered - Size Not Allowed. Xandr publishes this integer with that meaning.

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