# Discrepancies

## Unavoidable discrepancies

There are several unavoidable factors that result in reasonable levels of
discrepancies between AdWords install and in-app conversion numbers versus those
tracked by a third party.

- AdWords measures Android installs while third parties can only measure Android app opens.
- There might be time zone differences in reporting. Google uses the local time as set in the advertiser's account.
- AdWords reports conversions back to the day of the ad click, not the day of the conversion event.
- Delays in AdWords conversion reporting (up to 24 hours).

## Troubleshooting discrepancies

### Third-party reporting shows fewer conversions than AdWords

- Confirm that the advertiser is using required tracking URLs for all their destination URLs.
- **iOS** : Confirm that the advertiser has added your install confirmation template to the **Advanced Options** of the conversion in AdWords, and that it is accurate.
- **Android**: Make sure that the developer doesn't have multiple install referrer receivers in their Android manifest. If so, Google Play will only broadcast to the first receiver.

### Third-party reporting shows more conversions than AdWords

- Ensure that only trackable AdWords inventory is being compared.
- **iOS**: Confirm that all conversion events are being posted back to AdWords.
- **iOS**: Make sure that postbacks are configured with the correct AdWords conversion ID and label.
- **Android**: Ensure that auto-tagging is enabled in the advertiser's AdWords account.
- **Android**: Confirm that the redirect is passing through all referrer parameters to Google Play.