${AUCTION_MULTIPLIER}

What it expands to

Total quantity of impressions won, for DOOH-style multi-viewer inventory; float, may be below 1.

Expands with the quantity of impressions won for multi-viewer inventory such as DOOH, a float that may be below 1. Added in the 2.6 updates.

What to watch for

Billing for DOOH is price times multiplier. Ignore it and every DOOH win is booked as exactly one impression, which is wrong in both directions.

Encoding

When a macro rides inside another URL as a query parameter, the expanded value must survive URL parsing: exchanges support suffixed forms like ${AUCTION_MULTIPLIER:B64} (base64) where documented, and values containing reserved characters must be percent-encoded. An unencoded expansion is the most common reason a notice URL truncates at the first ampersand.

Related

• All substitution macros
• Where nurl, burl, and lurl fire in the delivery flow
• Loss reason codes
• ${AUCTION_ID}
• ${AUCTION_BID_ID}
• ${AUCTION_IMP_ID}
• ${AUCTION_SEAT_ID}
• ${AUCTION_AD_ID}