---
page_source: https://juspay.io/in/docs/upi-merchant-stack/docs/dynamic-vpas/introduction
page_title: Introduction
---


# Introduction




### VPA Resolution API



Currently, for Dynamic UPI ID Merchants, VPA is resolved by reading the first 6 initials of VPA. Therefore in such  cases, the additional details are not captured, such as payee name, merchant tags, MCC and settlement account. 

Scenarios where merchant details are effectively captured, the application should call Merchant’s API to capture  the relevant ReqAuth/ReqVal details from the merchant.