Having trouble seeing ads from your Mediated Ad Source set up?

Here are some factors that might be causing the issue.

• Verify that you're using the correct account credentials for the ad source 
• In addition, check with the ad source to confirm that your credentials has been approved. 
• Verify that the country, devices,  & cap targeting is set properly.
• It could be a fill issue based on ad source. 
• You might want to double check where you have the mediated ad source prioritized in your waterfall - see ad source prioritization