# General Introduction

### Introduction to VietQR

VietQR is a fast and secure QR code payment solution that helps businesses optimize transaction processes, reduce operational costs, and enhance customer experience. With VietQR, you can easily manage cash flow, receive balance change notifications, and support customers with a flexible refund feature available in the Pro service package.

Comparison of VietQR Pro and VietQR Plus Service Packages

| Feature                   | VietQR Pro                                                                                   | VietQR Plus                                           |
| ------------------------- | -------------------------------------------------------------------------------------------- | ----------------------------------------------------- |
| Refund Feature            | ✅ Available                                                                                  | ❌ Not Available                                       |
| Service Fee               | % of transaction value                                                                       | 1,600 VND/transaction + VAT                           |
| Minimum Transaction Value | No minimum limit                                                                             | No restriction                                        |
| Recommended for           | Automated control devices, vending machines, and businesses with frequent small transactions | E-commerce businesses with high-value transactions    |
| Technical Standards       | Same as VietQR Plus                                                                          | Same as VietQR Pro                                    |
| Switching Plans           | Automatic fee adjustment when switching between plans                                        | Automatic fee adjustment when switching between plans |

Both VietQR Pro and Plus use the same technical connection standards, ensuring seamless integration and easy plan switching based on business needs. 🚀

### How to Choose Between the Pro and Plus Plans

• VietQR Pro: Includes a refund feature. The service fee is calculated as a percentage of the transaction value.

• VietQR Plus: Does not include the refund feature. The fee is charged at 1,600 VND per transaction + VAT.

### How to Choose the Right Plan

• For automated control devices, VietQR recommends using the Pro plan as it benefits both agents and customers by applying a percentage-based fee without a minimum transaction limit.

• The Plus plan is more suitable for e-commerce businesses, where transactions tend to have higher values.

### Seamless Plan Switching

Both VietQR Pro and Plus share the same technical connection standards. When customers switch between the two plans, the VietQR system will automatically adjust the appropriate fee mechanism, eliminating the need for any additional configuration from customers or partners.


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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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```

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The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
