Loss reason codes

Loss reason 209: Creative Filtered - Category Exclusions

Creative filteredExpanded via ${AUCTION_LOSS} in lurl

What it means

The creative's category hits bcat or a deal's category blocks.

The exchange reports this code by expanding the ${AUCTION_LOSS} macro in the bid's loss notice URL (lurl). A bidder that does not set lurl never sees it, and never learns why it lost.

What to do about it

The 200-series means the exchange's creative policy rejected the ad after the auction logic: size, format, security, category, attribute, or store exclusions, or a creative still pending review. Compare what your adm actually contains against what the imp offered (the validator's markup-vs-mtype and markup-vs-imp checks catch format mismatches), and pre-sync creative approvals with exchanges that require review.

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