Common discrepancy causes - FAQ

  • Your system and the Xandr system are not counting impression and spend the same way.
  • Comparable figures are not from the same timezone.
  • Creatives might be large and slow to load, introducing latency. This could result in users dropping off the web or app before all the counting pixels have been called.
  • Counting pixels might be embedded in a lot of pixel containers, causing latency. Users might to drop off the web or app.
  • Your creatives might not be compatible with older browser versions. Ensure your creatives are compatible with older versions of browsers or exclude those browsers from your buying.
  • Creatives could have JavaScript compatibility issues. Ensure your creatives are not blocking JavaScript.
  • Creatives could have daisy chain, multiple Iframe compatibility issues. Ensure your creatives are not relying on features that are not expected to work in multiple Iframes.
  • There could be broken code on publisher page that doesn't correctly display the ad or call the attached pixels.
  • All the creatives are not using cache busting macro ${CACHEBUSTER}.
  • All the creatives are not using <no_script>.
  • Flash creatives or DCO creatives are not using a default or backup image creative.
  • Creatives are not used with the correct template_id. (See Selecting the Correct Template for Your Creative)
  • Third-party provider (DCO , swapping, viewability, security) is avoiding the creative display outside campaign scope based on IP or latitude/longitude geo location.
  • Load balancing feature used on bidder side and limitation of an "in silo" reconciliation that prevent the servers or services from properly reconciling the auctions won and price paid globally.
  • Counting pixel server timeout.
  • Counting pixel or creative servers hosted on a server that is slow to load or using CNAME.

Information to provide when opening a discrepancy case

  • Discrepancy type: Impressions / Spend / Both
  • Phase 1 reports
    • Impressions count
    • Spend
    • By seller id
    • By placement id
    • By tag id
    • By domain
    • By creative.id (the creative id of the Xandr creative object)
    • By creative.code (if used, should be the creative id from your side)
    • By Geo
    • By hours, on last 7 days