> 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/testing.md).

# Testing

- [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.