Designing Complex Flows: Simplifying Bank Integrations and Mandates

The Challenge

An Indian mutual fund investment app faced a significant drop-off at the "Bank Verification & Mandate Setup" stage. While users successfully completed KYC, 28% abandoned the app when asked to link their bank accounts. The legwork required was substantial: users had to input their bank name, account number, search for an 11-digit IFSC code (which users rarely remember), select between Net Banking or Debit Card verification, and complete a recurring mandate setup. Net banking verification required entering corporate bank login passwords and passing multiple OTP loops, leading to connection timeouts and high user frustration.

What We Did

We redesigned the bank linking and mandate creation flow, focusing on three major product updates:

1. IFSC Auto-Fill and Branch Search: We eliminated the manual IFSC requirement. Users simply select their bank from a grid of popular logos, and then search for their branch by entering their city name. The system auto-fills the correct IFSC code from our database.
2. Unified UPI AutoPay Flow: Instead of defaulting to complex net banking or debit card mandates, we set up **UPI AutoPay** as the primary mandate creation channel. Users enter their UPI ID, receive a debit request inside their UPI app (PhonePe, Google Pay, or Paytm), and authorize the recurring mandate with a single UPI PIN entry.
3. Instant Penny-Drop Verification: To verify the bank details, the system performs an instant "penny-drop" (depositing ₹1 into the user's account and using IMPS to verify that the account holder's name matches the KYC details). This validates details in real-time, replacing manual statement uploads.

Key Insights

Our flow optimizations highlighted three insights:

• Eliminate search loops: Requiring users to leave the app to find details (like looking up an IFSC code on their bank passbook) is a primary cause of funnel abandonment. Inline tools are essential.
• UPI AutoPay outperforms net banking: UPI AutoPay mandate setups achieved a **38% higher success rate** than net banking mandates, which frequently failed due to bank server downtime or forgotten passwords.
• Build visual checklists: Displaying a 3-step progress bar (Link Bank → Verify ₹1 → Authorize Mandate) helped users understand the process, keeping them motivated.

The Results

Following the deployment of the redesigned bank integration workflow: - Bank setup abandonment fell by **32%**. - Mandate setup success rates increased to **84% blended across banks**. - The time required for users to link their account and mandate decreased from a median of 8 minutes to **under 2 minutes**. - Negative customer support queries related to "bank linking errors" dropped by **65%**.

How to Implement This

To optimize complex integrations and bank flows:

• Use bank routing databases: Maintain an up-to-date database of Indian bank branches and IFSC codes, allowing users to search by branch name.
• Set UPI AutoPay as default: Integrate with payment aggregators (e.g. Razorpay, Cashfree) that support instant UPI AutoPay e-mandates.
• Enforce name-match rules: Always run name-matching scripts on the penny-drop output. If the name returned from the bank matches the PAN card (e.g. over 85% match score), authorize the account automatically.

Why This Works

This playbook works because it reduces input friction. By eliminating manual searches, replacing complex bank login screens with familiar UPI PIN interfaces, and verifying details in real-time, you help users complete complex setups with minimal effort.