You can use session messaging to reply to user queries or messages.
If a user sends a message to your registered WhatsApp business API number, it is called an incoming session message. WhatsApp allows you to reply to the user(active user) within 24 hours of the user's last message, referred to as an outgoing session message.
Session messages are text, media, or interactive messages that do not require WhatsApp's approval. Regardless, the quality of messages impacts your WhatsApp Business API.
Learn how you can use our API to send session messages to users.