What does one gray check mark in WhatsApp messages mean when sending to a person?

What does one gray check mark in WhatsApp messages mean when sending to a person - briefly?

A single gray check mark in WhatsApp indicates that your message has been successfully sent from your device but has not yet been delivered to the recipient's phone.

What does one gray check mark in WhatsApp messages mean when sending to a person - in detail?

The single gray check mark that appears on a message sent via WhatsApp signifies that the message has left your device and is currently being transmitted through the network to the recipient's phone. This status indicator does not provide information about whether the recipient has viewed or received the message yet, as it only confirms successful transmission from the sender's end. It is important to note that once a message reaches this stage, it cannot be recalled or deleted by the sender, emphasizing the need for careful consideration before pressing send. The subsequent status indicators, such as two gray check marks and two blue check marks, will provide further details about the message delivery and receipt, respectively.