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Integration PatternsUpdated: Feb 25, 2026Possible high-level approaches Approach Number setup Business Solution Provider responsibilities Calling Tech Provider responsibilities End business responsibilities Message BSP capable of CallingExisting messaging ...

Integration ExamplesUpdated: Feb 25, 2026This guide explains integration of common VoIP platforms with WhatsApp Business Calling API.This guide is for information purposes only with no support or warranties of any kind from Meta or any vendor. There are many w...

API and Webhook ReferenceUpdated: Nov 25, 2025Calling API endpointsConfigure or update calling settingsCall the Update Phone Number Settings endpoint and pass in Calling API parameters to configure settings on a business phone number you designate in the reque...

Troubleshoot WhatsApp Calling Errors - Reference GuideUpdated: Dec 3, 2025Standard error responseWhen you receive an error, in the majority of cases the error shape will look like this:{ "error": { "message": "<Error Message>", "type": "<Exception Ty...

Set Up a Sandbox Account for CallingUpdated: Oct 31, 2025Sandbox accounts are only available to you if you are a Tech Partner.OverviewA WhatsApp sandbox account is a mock WhatsApp Business Account that you can use to test your Calling API integration. Use a ca...

Calling API App Review GuidelinesUpdated: Nov 21, 2025OverviewThe official page referenced by reviewers is /docs/permissions#w. Use this guide as complementary to that page but treat that page as the official source when in doubt.This page provides details to ...

Calling API PricingUpdated: Mar 30, 2026All user-initiated calls are free.OverviewBusinesses are charged for calls based on:Duration of the call (calculated in six-second pulses)Country code of the phone number being calledVolume tier (based on minutes called ...

FAQsUpdated: Nov 13, 2025Product FAQWill calls show up in the insights page on Meta WhatsApp Manager UI?Call insights will be available in both WhatsApp Manager and the analytics API.Are International calls supported like WhatsApp consumer to consumer calls?Ye...

Groups APIUpdated: Nov 14, 2025Eligibility for Groups APIThe Groups API is now open to all businesses with an Official Business Account (OBA)The Groups API enables you to programmatically create groups for messaging and collaboration.How it worksGroups are an ...

Get started with Groups APIUpdated: Nov 14, 2025Eligibility for Groups APITo qualify for groups features, your business must be an Official Business Account (OBA)OverviewGroups on are invite-only, meaning that potential group participants are ultimately in con...

Group managementUpdated: Mar 25, 2026OverviewThe Groups API gives you simple functions to control groups through their lifecycle.When you create a new group, an invite link is created for inviting participants to the group.Since you cannot manually add partici...

Group messagingUpdated: Nov 14, 2025OverviewThis document provides comprehensive information on the APIs and webhooks available for sending and receiving messages within groups. It details support for various message types, including:Text messagesMedia message...

Webhooks for Groups APIUpdated: Feb 11, 2026In order to receive webhook notifications for metadata about your groups, please subscribe to the following webhook fields:group_lifecycle_updategroup_participants_updategroup_settings_updategroup_status_updategroup_...

Groups API Error Codes and TroubleshootingUpdated: Oct 31, 2025Error Codes Code Description HTTP Status Code 131020Bad GroupCannot send messages to single member groups.400Bad Request131041Group unknownThe group was not found, either because it doesn’t exist...

Groups API PricingUpdated: Oct 22, 2025Per-message pricing on Groups APIGroups API uses Cloud API’s per-message pricing model to determine if a given message is billable. However, you are charged each time a billable message is delivered to someone in the grou...

Groups API FAQUpdated: Oct 22, 2025What happens when I delete a group?No members, including you, will be able to message the group.If any messages or statuses were received by Cloud API before the group was deleted, you may still receive webhooks for those.Why...

Welcome Message Sequences - API GuideUpdated: Nov 17, 2025When creating Click-to-WhatsApp ads, you can connect a Welcome Message Sequence from your messaging app. A sequence can include text, prefilled message, and FAQs.This guide explains how to manage Welcom...

Catalogs overviewUpdated: Mar 3, 2026WhatsApp catalogs let businesses showcase products and services directly within customer conversations. Instead of redirecting customers to external websites or apps, catalogs bring the browsing experience into the chat — c...