> For the complete documentation index, see [llms.txt](https://developer.magtek.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.magtek.com/get-started/your-first-transaction.md).

# Your First Transaction

This walkthrough runs one EMV sale end to end so you can confirm your setup works. It's the quick version — each step links into the full detail.

### Before you begin

* Your reader is connected — see [<mark style="color:red;">**Connection Basics**</mark>](https://developer.magtek.com/get-started/connection-basics).
* Keys are injected and you can decrypt output — see [<mark style="color:red;">**Security & Key Management**</mark>](https://developer.magtek.com/guides/guides/security-and-key-management).

### Run it

1. **Start the transaction.** Send [<mark style="color:red;">**Start Transaction – 0x1001**</mark>](https://developer.magtek.com/api-and-command-reference/scra-dynafamily-programmers-manual/commands/transactions-command-group-0x10nn/start-transaction-command-0x1001) with the amount and transaction type, and prompt the cardholder to insert, tap, or swipe.
2. **React to the reader.** As the transaction proceeds, the reader sends [<mark style="color:red;">**Transaction Information Update – 0x0101**</mark>](https://developer.magtek.com/api-and-command-reference/scra-dynafamily-programmers-manual/notifications/transactions-source-0x01nn/transaction-information-update-notification-0x0101) notifications reporting progress. On a reader without a display (like the DynaFlex II Go), respond to any prompts it sends via Host Action Request.
3. **Finish.** The reader produces an ARQC; forward it to your processor and return the response, or use Quick Chip to complete immediately. The reader sends [<mark style="color:red;">**Transaction Operation Complete – 0x0105**</mark>](https://developer.magtek.com/api-and-command-reference/scra-dynafamily-programmers-manual/notifications/transactions-source-0x01nn/transaction-operation-complete-notification-0x0105) with the result.

### Go deeper

That's the shape of it. For the full flow — the Quick Chip vs. EMV fork, online authorization, contactless, and configuration — see [<mark style="color:red;">**EMV Acceptance**</mark>](https://developer.magtek.com/guides/guides/emv-acceptance).

### Need More Help

{% hint style="info" %}
**Need Help?**

For additional support, please contact MagTek Support:

**Technical Support:**

* 📧 **Email:** <support@magtek.com>
* 📞 **Phone:** 1-800-788-6835 (US) | +1-562-546-6616 (International)
* 🕐 **Hours:** Monday-Friday, 6:00 AM - 5:00 PM PST

**Online Resources:**

* 🌐 **Official Site:** [https://www.magtek.com](https://www.magtek.com/)
* 💬 **Developer Forum:** [https://forum.magtek.com](https://forum.magtek.com/)

**Documentation Feedback:**

Help us improve this documentation! [Submit feedback](broken://spaces/1lWLescKFIPsMeIJI6Cd/pages/5314c528980689961380bea0044c1256aaeb39bc)
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