Minimum library values that support 'READ' receipts for WhatsApp messagesīack to the Message properties list. This status is only accessible when using a Messaging Service ( Pilot opt-in) The message has been canceled. The recipient must have enabled read receipts. The message has been delivered and opened by the recipient in the conversation. Twilio does not charge you for failed messages. This can happen for various reasons including queue overflows, account suspensions and media errors (in the case of MMS). This can happen for many reasons including carrier content filtering and the availability of the destination handset. Twilio has received a delivery receipt indicating that the message was not delivered. Twilio has received confirmation of message delivery from the upstream carrier, and, where available, the destination handset. The inbound message was received by one of your Twilio numbers.

The inbound message has been received by Twilio and is currently being processed. The nearest upstream carrier accepted the message. Twilio is in the process of dispatching your message to the nearest upstream carrier in the network. This will be the initial status when you are not using a Messaging Service The API request to send a message was successful and the message is queued to be sent out. This will be the initial status when scheduling a message with a Messaging Service

( Pilot opt-in) The message is scheduled to be sent. This will be the initial status when sending with a Messaging Service and the From parameter. Twilio has received your API request to send a message with a Messaging Service and a From number is being dynamically selected. Twilio Conversations for two-way messaging Looking for the WhatsApp Business API with Twilio? ISV Standard API Registration Walkthrough What to Know Before Sending International SMS Messages How to retrieve and modify message history How to Work with your Free Twilio Trial Account

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