Why does one checkmark appear when sending a message in WhatsApp?

Why does one checkmark appear when sending a message in WhatsApp - briefly?

When you send a message on WhatsApp and see a single checkmark, it indicates that your message has been successfully sent from your device but has not yet been delivered to the recipient's phone.

Why does one checkmark appear when sending a message in WhatsApp - in detail?

When you send a message on WhatsApp, the initial single checkmark appears to indicate that your message has been successfully sent from your device. This is an acknowledgment from WhatsApp's servers confirming receipt of the message at their end. It essentially means that the message has left your phone and is now in transit through WhatsApp's infrastructure, waiting to be delivered to the recipient's device.

This single checkmark serves as a crucial first step in the message delivery process. It ensures that the user knows their message has been successfully transmitted from their end without any immediate issues or errors. This acknowledgment helps build confidence that communication is underway, even though the final delivery to the recipient's phone has not yet occurred.

Once the recipient's device receives the message, two checkmarks will appear, signifying successful delivery. Until that happens, the single checkmark remains as a visual cue that your message is on its way through WhatsApp's network, awaiting final confirmation of receipt by the intended recipient.