# Handling 3DS If the transaction being carried out is a 3DS transaction, a redirect link will be returned to the merchant to redirect their customers to a web view to verify their identity with the card issuer. The web view that the customer will be redirected to is a verification page on their bank site where the customer will be required to enter a password linked to the card or an OTP sent to the customer's registered mobile number or email address. Once the authentication is completed, the card issuer generates an authentication response and sends it back to the merchant. The customer will then be redirected back to the merchant's application where the transaction will either be approved or rejected based on the response received from the card issuer. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://googlepay.airvend.ng/handling-3ds.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.