---
title: Developer Hub
slug: developer-hub
docTags: 
createdAt: 2024-05-29T11:07:53.616Z
---

## Sandbox Test Account

You need your sandbox account so you can process test transactions while developing your app.

:::CtaButton{label=">>>  Click to sign up for your Sandbox Account  >>>" externalHref="https://www.judopay.com/contact/apply-sandbox-account" openInNewTab="true"}

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### Change Logs.

Learn about the latest updates to our Transaction API and Mobile / Web and Server SDKs: View our [Change Logs](docId\:BndR6B_XZFuYBInNqJCjN).
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### Comms Log.

View our technical communications log, listing communications we have previously circulated to our merchants: [Comms Log](docId\:w1fRrDSaGpI1snYgkNz8z).
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### Developer Tutorials.

View our getting started Developer Tutorials in our video library: [Developer Tutorials](docId\:TEY_GEQbut9bneZO5mWgu).
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### Codes and Descriptions.

See our list of possible error [Codes and Descriptions](docId:_zrsihomUEW-XnRQ4PBtJ).
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### Error Types.

For descriptions and example error response structures, see [Error Types](https://docs.judopay.com/codes-and-descriptions#error-types).
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### Valid Country Codes.

See the valid [Country Codes](docId\:XZE369mFK5UVOSaNzM8UO) to be used when making transaction requests.
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### Card Types.

For more information on a Card Type's unique ID, see [Card Types](https://docs.judopay.com/codes-and-descriptions#card-types).
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### Webhooks.

To view an example webhook model and to enable webhooks, see [Webhooks](docId\:mQjiiZXmCRo1cpvAUaWuD).
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## Deprecated Integration Methods 

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### Deprecated.

Resource for: [Deprecated Integration Methods and Flows](docId\:XGX_AUqMHSLweECGM7xT0).
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