Total impressions rejection reasons
Review the following table to understand the rejection reasons found under the "Total impressions" card in Ads traffic navigator .
Here's a breakdown of what you can view in each column:
- Rejection reason:This column describes the rejection reason in detail.
- Suggested action: This column suggests actions you can take to resolve the rejection reason. If there's no suggested action, the entry shows "No action recommended."
Rejection stage: This column indicates the rejection stage in a card's visualization where you'll find the rejection reason.
To filter the table:
- Click Filter with a few keywords, and enter one or more keywords in the search box.
- Click Narrow byand select a rejection stage.
Rejection reason
Suggested action
Rejection stage
Yield group mediation passbacks
The mobile app’s SDK tries to load the first element in the mediation chain. If it fails to load, the SDK continues to pass back to the next element, until an ad is returned. In this process, each unloaded ad counts as a passback.
The mobile app’s SDK tries to load the first element in the mediation chain. If it fails to load, the SDK continues to pass back to the next element, until an ad is returned. In this process, each unloaded ad counts as a passback.
If a mediation partner passes back more than expected, you may want to check with the ad network about why the fill rate is low.
Unused bids or partners
Once an ad loads, these are the number of elements remaining in the mediation chain that didn’t need to be requested.
Once an ad loads, these are the number of elements remaining in the mediation chain that didn’t need to be requested.
This is expected, as mediation returns multiple partners to guarantee that one can eventually load. If a mediation partner is unused more than expected or desired, you can increase the value of the yield group. To ensure the mediation chain is optimized, you can also activate automatic data collection
or ensure that each mediation network's CPM is adjusted periodically, according to the bids actually received by each partner.
About "Ads failed to render"
This rejection stage indicates the number of ads that served but didn’t render. No further details available.
This rejection stage indicates the number of ads that served but didn’t render. No further details available.
Review possible actions for the ad type:
- Display: Run an ad speed report. Also, if this is happening more with creatives you host in Ad Manager, review the file sizes.
- Video: Compare the render rate to the click-to-play rate. Also, review VAST errors, as the cause could be users not clicking play on the player or video ads that result in fatal VAST errors.
- Mobile app: Because mobile app impressions are counted when one or more pixels of the ad creative is visible on a device's screen, check the viewability and placement of the ad slots. Check if some slots have lower rendering and viewability than others.
