> For the complete documentation index, see [llms.txt](https://docs.ayetstudios.com/v/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing.md).

# Callbacks & Testing

- [Callbacks](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/callbacks.md)
- [Offerwall Callbacks](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/callbacks/offerwall-callbacks.md)
- [Surveywall Callbacks](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/callbacks/surveywall-callbacks.md)
- [Rewarded Video Callbacks](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/callbacks/rewarded-video-callbacks.md)
- [IP Whitelist](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/callbacks/ip-whitelist.md)
- [Callback Verification](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/callback-verification.md)
- [HMAC Security Hash (optional)](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/callback-verification/hmac-security-hash-optional.md)
- [Failed Redirects](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/failed-redirects.md)
- [Failed Redirect Destination](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/failed-redirects/failed-redirect-destination.md): Control the user flow when a redirect is failing.
- [Testing](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/testing.md)
- [Callback Tester](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/testing/callback-tester.md): With the Callback Tester you can verify that you receive back all relevant information you need in order to pay your users and if the added macros are populated correctly.
- [Sandbox Identifier](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/testing/sandbox-identifier.md): Sandbox Identifiers can be used to test the user and callback flow from initial entering the offerwall until successfully processing a callback.
- [Go-live checklist](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/go-live-checklist.md)
- [Offerwall Checklist](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/go-live-checklist/offerwall-checklist.md): This checklist is supposed to help you to take care of all important and relevant settings before going live with your Offerwall.
- [Surveywall Checklist](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/go-live-checklist/surveywall-checklist.md): This checklist is supposed to help you to take care of all important and relevant settings before going live with your Surveywall.
- [Rewarded Video Checklist](https://docs.ayetstudios.com/v/product-docs/callbacks-and-testing/go-live-checklist/rewarded-video-checklist.md): This checklist is supposed to help you to take care of all important and relevant settings before going live with your rewarded video placement.