Possible Causes:

• Time Restrictions: Meta Business policies restrict sending messages if it has been more than 24 hours since the customer's last message.
• No WhatsApp Account: The contact may not have a WhatsApp account.
• No Internet Connection: The contact may not have an active internet connection.

What can I do to successfully send a message?

For more information and solutions, please refer to the following pages:

📬 How Can I See If a Message Has Been Successfully Sent?

🪡 Why Can’t I Send a “New Conversation” Message?