> For the complete documentation index, see [llms.txt](https://docs.coda.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coda.co/codapay/codapay-integration-faq/hosted-payment-page-api/testing.md).

# Testing

## Sandbox Environment

#### During sandbox testing, the redirection to <https://simulator.codapay.net/> cannot be opened.

We have carried out some solutions for you:

* Close the tab -> Return to the payment page -> Copy the Transaction ID -> Complete the payment using our simulator

> Refer to our [Payment Channel Sandbox Guide](/codapay/integration-guides/testing-guide/payment-channel-testing-instructions.md)

* Contact our Tech team by providing the Transaction ID, our team will assist in completing the payment from the backend

<figure><img src="/files/5kiK6RbR20FpKmyXvFjh" alt="" width="563"><figcaption></figcaption></figure>

{% file src="/files/3GimDYpAv1Xj1VU4M78f" %}

***

## Production Environment

#### What's the process of activating the production environment after completing the sandbox testing?

1. You need to approve the e-annex in the Publisher Portal and configure the Redirect and Notify URLs for the production environment.
2. Make sure you are using[ inquiryPaymentResult() method ](/codapay/hosted-payment-page-integration/check-a-transaction-status.md)to double-confirm the payment status other than the Notify callback.
3. Contact our Codapay support team to activate the production environment, providing the following information:
   1. What's the value of "Paytype" when sending API requests?

      a) 0\
      b) Payment Channel ID
   2. What currency are you using when sending API requests?\
      a) Local Currency\
      b) USD 840
   3. Are you using the [InquiryPaymentResult](https://coda-payments.gitbook.io/coda-private-technical-documentation/codapay/hosted-payment-page-integration/check-a-transaction-status) endpoint?
   4. Integration methods (Webview / External Browser / PC Client)

      a) Local Currency

      b) USD 840
4. Please take note of the [Special Payment Channels](/codapay/integration-guides/payment-channel-info/hosted-payment-page/special-payment-channels.md) that require approval and additional configuration before live.
5. If you need Coda's help with testing, please provide us with the following details:
   * [x] APK/Top-up Website Link
   * [x] Game account ID/App login ID and password
   * [x] Amount (Lowest denomination only)
6. Notify the Coda team of the anticipated timeline for the product launch.


---

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