Google creative status code 231: Ad rejected because the vast lacks an MP4A media file and the request requires an ad with an MP4A media file.

Google creative statusReturned in ${CREATIVE_STATUS_CODE}

What Google creative status says

Ad rejected because the vast lacks an MP4A media file and the request requires an ad with an MP4A media file.

Google returns this number in ${CREATIVE_STATUS_CODE} on the loss notice. It is not an ${AUCTION_LOSS} value. A search for Google creative status code 231 is this status.

What was checked

Google compared the creative on the bid with the constraint named in this status.

What to change

Status 231 names the constraint. It clears when that condition is gone. Bidding the same creative again returns 231.

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