DFP troubleshooting tools

Find the right tool to solve your issue

Inspect a page's delivery or simulate requests

See which ads delivered to your page, why these ads delivered and not others, if line items and creatives are configured correctly, and more. Simulate ad requests and help determine why a different ad delivered than the one you expected. Use this tool for desktop, mobile web, mobile app, or video line items.

Delivery Inspector (3:59)

Diagnose line items

Click a line item's Troubleshoot tab to see why a line item didn't deliver over the past 7 days, even though it was eligible for an ad request.
Preview creatives associated with a line item to verify that they're displaying and tracking clicks correctly.
View the change history for a line item, or other objects throughout DFP, to see what updates might have contributed to an issue.

Help me troubleshoot delivery

Verify your tags

Video Suite Inspector See if the issue is with an VAST tag or with the webpage itself. Check response from VAST tag; Get sample VAST tag. Go there now	Troubleshoot video ads (7:38)
DFP Tags Generator Customize and generate ad tags without having to manually edit the code. Go there now
Google Publisher Console Check for common GPT tagging errors, identify all of the ad units on your webpage, and view delivery diagnostics in DFP.