> ## Documentation Index
> Fetch the complete documentation index at: https://devzone.nayax.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Certification & Testing

export const PostmanButton = ({href}) => {
  return <a href={href} target="_blank" rel="noopener noreferrer" className="inline-flex items-center gap-2 px-5 py-2.5 rounded-md bg-[#FF6C37] hover:bg-[#e85e2c] text-white font-semibold text-sm no-underline border-b-0 transition-colors">
      <Icon icon="play" icontType="solid" color="#ffffff" />
      Run in Postman
    </a>;
};

This page provides access to essential certification files, API testing tools, and documentation that support your integration and validation of TweezerComm services.

## Certification Files

These Excel files are required for certification with various payment scenarios. Download and use them during your implementation and certification process:

* [Pre-Selection Certification](https://docs-engine.modularity.co.il/_static/Retail_Certification_preSelection.xlsx): Validates terminal behavior before transaction authorization.
* [Pre-Authorization Certification](https://docs-engine.modularity.co.il/_static/Retail_Certification_preAuthorization.xlsx): Verifies transaction handling up to the authorization phase.

## Agamento Documentation

The [Agamento User Manual](https://docs-engine.modularity.co.il/_static/Agamentoguidapp_v1.pdf) is a comprehensive guide for using the Agamento payment application, including configuration, transaction flow, and troubleshooting tips.

## IPs and Ports

In cases where the IT environment has a firewall or IP whitelist, you will need to open a list of IP addresses and Ports, so that you can use TweezerComm. You can see this list in the file below:

* [IP & Port List](/)

## Postman Collection

Postman is a tool for designing, testing, and documenting APIs. Use the TweezerComm Postman collection to explore and validate endpoint behavior during development.

<Note>
  **Download Postman**

  You can download Postman for Linux, Windows, or macOS, or use the [web version](https://web.postman.co/).
</Note>

To get started, click the button below to open the Postman collection.

<PostmanButton href="https://orange-water-45471.postman.co/workspace/2bd08c21-8393-42b6-b02a-8374c6e6887e/collection/36813629-e96e299f-a802-4859-931f-8e2fa3ce2b02?utm_source=email&utm_medium=view_collection" />

<Warning>
  **`DeviceIP`**

  Remember to change the `{DeviceIP}` to your own in the request URL.
</Warning>