twilio-whatsapp-manage-senders

Create a sender via client.messaging.v2.channels.senders.create with a sender_id like whatsapp:+15017122661 and a verification method, then submit the OTP code sent to the number via an update call. The sender moves through statuses like CREATING and TWILIO_REVIEW before reaching ONLINE.

Update the sender with callback_url and callback_method for inbound messages, plus status_callback_url for delivery status events. This is done through the Channels Senders update endpoint in either the Python or Node.js Twilio SDK.

No, trial accounts cannot register production WhatsApp senders; you need an upgraded Twilio account. Sandbox testing is available without a registered sender for development purposes.

An OFFLINE sender includes an offlineReasons array explaining the cause, such as error code 63020 when the business has not accepted Twilio's invitation in Meta Business Manager. Fetch the sender resource to inspect these reasons.

Unverified Meta Business accounts are limited to 2 senders. Verified Meta Business Manager accounts can have up to 20 senders, or 50 with an approved exception request. Each phone number can belong to only one WABA at a time.