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title: "Reasons Bid Requests are Dropped"
canonical: "https://hub.freewheel.tv/space/BC/114262339/Reasons%20Bid%20Requests%20are%20Dropped"
format: markdown
---
Overview Before any auctions from exchanges are forwarded to an individual customer's Buyer Cloud instance, Buyer Cloud performs some basic hygiene on the requests. This page explains some reasons why a bid request might be dropped prior to customer filtering. Cases Where Bid Requests Are Dropped User Opt-Out Users may choose to opt out of being served ads by Buyer Cloud by following the opt-out instructions provided on the  Beeswax Privacy Policy  page. If the user ID on a particular bid request is flagged as “opted out,” the bid request will be dropped. Cases Where Bid Requests Are Not Dropped Do Not Track The “Do Not Track” (DNT) setting is not honored. Requests marked as "DNT" are not dropped or altered in any way. Limit Ad Tracking “Limit Ad Tracking” (LMT) is a device-level opt-out setting that allows users to limit the amount of information sent from their device  for advertising purposes , including omitting their device ID. Bid requests flagged as LMT are eligible to bid on, and the user's personal data is obscured . For more information, see  Limit Ad Tracking (LMT) Processing Logic .