Now that you've made a successful API call using the Google Ads API, here are some
useful resources to continue on your Google Ads API journey.

- [API fundamentals](https://developers.google.com/google-ads/api/docs/concepts/overview)
- [API authorization and access model](https://developers.google.com/google-ads/api/docs/oauth/overview)
- [How to ask questions and get help](https://developers.google.com/google-ads/api/support)
- Use the [Google Ads API Developer Assistant](https://developers.google.com/google-ads/api/docs/developer-toolkit/ai-assistant)

## Experiment safely

You can experiment with the Google Ads API without modifying your production Google Ads
accounts. Here are some ways to experiment with the API without risking your
existing campaigns:

- **Use test accounts** : Using a Google Cloud project with Test access, or creating test accounts under a test manager account, lets you make API calls that don't affect your production data. We recommend using test accounts for all development and testing, as described in [Quick start](https://developers.google.com/google-ads/api/docs/get-started/make-first-call#google-ads-client-account).
- **Stick to read-only requests** : Many API calls, such as retrieving reports or campaign settings, are read-only and don't modify your account data. The example in [Quick start](https://developers.google.com/google-ads/api/docs/get-started/make-first-call), which retrieves a list of campaigns, is a read-only request that does not modify data.
- **Use `validate_only` for mutate requests** : If you need to test a request that modifies data (a mutate request), you can use the [`validate_only`](https://developers.google.com/google-ads/api/docs/concepts/api-structure#mutate-validation) field. When this field is set to `true`, the request is validated, but not executed, allowing you to check for errors without changing any data.
- **Review Change History** : If you make a change using the API, you can review it in [Change history](https://support.google.com/google-ads/answer/19888) in the Google Ads UI.

## Suggested topics for further exploration

- [Performance Max campaigns](https://developers.google.com/google-ads/api/performance-max/getting-started)
- [Conversion management](https://developers.google.com/google-ads/api/docs/conversions/overview)
- [Campaign management](https://developers.google.com/google-ads/api/docs/campaigns/overview)
- [Reporting](https://developers.google.com/google-ads/api/docs/reporting/overview)
- [Google Ads Query Builder](https://developers.google.com/google-ads/api/fields/v26/overview_query_builder)
- [Handle API errors](https://developers.google.com/google-ads/api/docs/get-started/handle-errors)

## References for building and productizing your app

- [Best practices](https://developers.google.com/google-ads/api/docs/best-practices/overview)
- [Google Ads API access levels](https://developers.google.com/google-ads/api/docs/api-policy/access-levels)