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These features organize people and chats around a connected number.

Groups

Create groups, manage members, configure permissions, and rotate invite links.

Contacts and identity

Use the stable ID and retain phone numbers or usernames as aliases.

Labels

Define labels and attach them to chats.

Profile and privacy

Control the connected account’s public profile and privacy settings.
Presence and label observation are project-configurable. Keep observation disabled when an integration does not need cached asynchronous state. Message-label events use label_association_message and carry a Polymorfa messageId. A label event can arrive before the message. Its ID remains stable, but message actions require the message’s routing information to have been observed. An association alone does not establish who sent the message.

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Groups on Hybrid Numbers

For teams enrolled in the Hybrid Link beta, group operations and group messages use the Number’s linked-device connection. Keep that connection connected and funded. If it is unavailable, the request fails with hybrid_group_linked_devices_unavailable; it does not switch to Official API. An explicit official_api transport is refused for Hybrid group messages. Official-only Numbers use the separate Meta Groups API beta, which requires an eligible Official Business Account and enrollment in the Official Groups beta. WhatsApp Business app numbers, including Coexistence Numbers, are ineligible for Meta Groups API. The Linked Devices group methods above do not create Official API groups.