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Overview

The PATCH /merchant/cards/{id}/contact endpoint allows you to update the cardholder’s contact details (email and mobile phone number). These contact details are used by the card network for transaction notifications, OTP verifications, and fraud alerts. This endpoint is supported across both Production (Live) and Sandbox (Test) environments with live provider synchronization.

Path Parameters


Request Body Parameters

Both fields are optional — only the fields you provide will be updated upstream.

Code Examples


Response Schema