A Google Groups thread reports issues with using the Google AdWords Verify Code option. The verify code tool seems to have been removed.

Why? AdWordsPro.Steph said it was removed because it came with the PPA (Pay Per Action) options. Google dropped the PPA program back in July and slowly phased out the Verify Code tool in September. Steph said:

The ‘Verify Code’ option was one of the features that came with PPA ads, which AdWords started to phase out this September. Along with this sunset, the ability to ‘verify’ your conversion tracking code using the verification tool will be disabled this week. Moving forward, you’ll need to check conversions the old way – by completing a test conversion and checking your reports.

Hopefully this helps some advertisers that are looking for the tool.

Forum discussion at Google Groups.