📘 Merchant Integration Guide

📌 What is a Static UPI QR?

A Static QR Code contains a fixed UPI payment URI that is linked to the merchant’s permanent Virtual Payment Address (VPA). It enables customers to scan the QR and enter the payment amount manually in their UPI app.

This format is ideal for:

Offline retail stores
Billing counters
Receipt/invoice printing
Events, exhibitions, or kiosks

✅ Static QR Code Format (Used by AeronPay)

upi://pay?mc={mcc}&pa={vpa}&pn={merchant_name}

🔒 Example (Using Sample Merchant Details):

upi://pay?mc=5411&pa=merchant.rakeshmittal@samplebank&pn=RAKESH MITTAL

🔍 Parameter Reference

Parameter	Required	Description
`mc`	✅ Yes	Merchant Category Code – 4-digit numeric code indicating business type (e.g., `5411` for Grocery)
`pa`	✅ Yes	Payee VPA – Merchant’s permanent UPI ID issued by Aeronpay
`pn`	✅ Yes	Payee Name – Display name of the merchant (as per onboarding records)

❗
Do not include am (amount) or tn (transaction note) in Static QR. These are applicable only in dynamic QR codes.

🧾 Example Breakdown

For merchant Rakesh Mittal, onboarded with MCC for Grocery:

upi://pay?mc=5411&pa=merchant.rakeshmittal@samplebank&pn=RAKESH MITTAL

Field	Value
`mc`	5411 (Grocery Store)
`pa`	merchant.rakeshmittal@samplebank
`pn`	RAKESH MITTAL

📄 Usage Guidelines

This QR should be displayed at the merchant's business location or printed on receipts.
Customer scans the QR with any UPI-enabled app (e.g., PhonePe, Google Pay, BHIM).
The payment amount is entered manually by the customer.
Each merchant is issued a unique, KYC-verified VPA by Aeronpay during onboarding.

✅ Benefits of Static QR

Simple to generate and deploy
No runtime API calls required
Easy offline support
Standardized across UPI ecosystem

🔐 Compliance Notes

Always use the VPA issued through AeronPay’s verified onboarding process.
Do not modify or repurpose QR strings across merchants.
Ensure VPA and merchant name match official onboarding records to avoid transaction mismatches or fraud.

🖼️ Rendering the QR Code

To display or print the QR code, use any standard QR code library.

📌 PHP Example (Endroid QR Code)

$qrContent = 'upi://pay?mc=5411&pa=merchant.rakeshmittal@samplebank&pn=RAKESH MITTAL';
$qrCode = new \Endroid\QrCode\QrCode($qrContent);
$qrCode->writeFile(__DIR__ . '/rakesh_qr.png');

📌 JavaScript Example (Using `qrcode` Library)

const QRCode = require('qrcode');
const qrText = 'upi://pay?mc=5411&pa=merchant.rakeshmittal@samplebank&pn=RAKESH MITTAL';

QRCode.toCanvas(document.getElementById('canvas'), qrText, function (error) {
  if (error) console.error(error);
});

🧠 MCC Code Reference

Business Type	MCC
Grocery	5411
Clothing & Apparel	5651
Salon & Beauty	7230
Restaurants	5812
Travel Agencies	4722

Select the MCC that matches the merchant’s business category as per their KYC submission.

📬 Support & Escalation

For onboarding queries, QR integration, or VPA validation support, contact:

AeronPay Integration Support
📧 Email: Integration Support 🌐 Website: https://aeronpay.in

🔄 Version History

Version	Date	Change Summary
1.0	2025-06-17	Initial release (Static QR Format)