<ul><li>After sending a WhatsApp message, you might see a single (✓) or double tick.</li><li>Single tick: The message has been sent from your end.</li><li>Double tick (gray): The message has been delivered to the recipient’s phone or other devices where they have set up WhatsApp.</li><li>Double tick (blue): The recipient has seen or read the delivered message.</li><li>To check the timestamp, swipe left on the message on iPhone.</li><li>On Android, touch and hold the message and tap info icon.</li><li>For bundled images & videos, tap the bundle and hold individual media to know when it was viewed.</li><li>Reasons read receipts may not appear include turned off read receipts, no internet connection, recipient's phone turned off, message ignored and blocked user.</li><li>Read receipts work for group messages and give a 'seen' timestamp for those who have left the group.</li><li>The read receipt resets to three dots (...) when a message is edited.</li></ul>

How to know when your WhatApp message has been seen

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