How should payment gateway integration export UPI reference IDs for education fees into our GST e-invoice PDF?

When UPI caps are hit, your platform should:

• Detect the cap automatically.
• Suggest NetBanking, Card, or Split UPI.
• Retry intelligently with smaller amounts.
• Offer EMI or payment links for bigger fees.
• Explain the reason clearly in-app.

That combo keeps your checkout smooth and prevents frustrated parents from calling the finance desk because UPI didn’t work again.

To handle ₹5L UPI receipts for education fees properly:

• Update settlement caps to ₹5L per transaction.
• Add a dedicated ledger for high-value education UPI receipts.
• Use a clearing account until settlement confirmation.
• Adjust refund/reversal limits.
• Confirm your PSP supports the higher limit.

Do this, and your marketplace will stay compliant and your finance team won’t be pulling all-nighters during audit season.

To tag UPI collections cleanly in your ERP:

• Add EDU_FEES as purpose code in UPI payload
• Map it to your Tuition Fee Receipts ledger
• Print it on receipts / GST invoices
• Reconcile using purpose code filters
• Block untagged UPI transactions

That one line of metadata purpose_code: EDU_FEES saves hours of reconciliation chaos later.

To handle high-value UPI receipts right —

• Match by UPI reference, not amount
• Add separate High-Value UPI ledger
• Support split or delayed settlements
• Keep GST and audit traceability intact

Do those four things, and your finance team won’t have to manually fix ₹5L receipts every month-end.

If your POS (like a school’s front-desk billing or fee collection terminal) accepts UPI payments, you absolutely need to push the UPI Reference ID (RRN or UPI Txn ID) into the GST e-invoice PDF, both for audit and GST return matching.

Here’s the clean way to do it:

• Capture the right UPI field from the PSP

Every successful UPI payment response contains a unique reference ID, usually under one of these keys depending on your PSP:

upi_txn_id: 231015672345,

rrn: 324512378912,

txn_reference: HDFC12345UPI

Make sure your POS stores this value in your payment table alongside the invoice number, like:

invoice_no | payment_mode | upi_ref_id

FE2025-0923 | UPI | 231015672345

• Map it into the e-invoice JSON schema

The GST e-invoice format already has a section for Payment Details:

PaymentDet: {

PayMode: UPI, 

FinInsBr: HDFC Bank,

PayInstr: 231015672345,

PayTerm: Full,

PayInstrDt: 2025-10-28

}

Here, PayInstr is where your UPI reference ID goes — that’s the field most ERP and GST tools recognize when generating the final PDF.

• Modify your PDF template

If your POS auto-generates PDFs, just add a small Payment Reference block under the payment summary section:

Payment Mode: UPI

Reference ID: 231015672345

Bank: HDFC Bank

That’s all GST auditors need to trace the UPI transaction back through NPCI or the PSP.

• Validate before export

Always check that:

• The UPI ID is alphanumeric and 12–20 chars long
• The transaction status = SUCCESS
• It’s linked to the same invoice date

This avoids junk data creeping into e-invoices or IRN rejections during filing.

• Sync with your accounting / ERP

When you push invoices to Tally, Zoho Books, or your ERP, include the same upi_ref_id field in your payment ledger. That keeps reconciliation super easy later, especially when you pull settlement reports from Razorpay, Cashfree, etc.