Zernio
Zernio
API Reference

WhatsApp

Templates

List templatesGETCreate templatePOSTGet templateGETUpdate templatePATCHDelete templateDELETEGet template by idGETUpdate template by idPATCHDelete template by idDELETELook up a library templateGET

Business Profile

Get business profileGETUpdate business profilePOSTUpload profile picturePOSTGet display name statusGETRequest display name changePOSTGet business usernameGETGet username suggestionsGETSet business usernamePOSTDelete business usernameDELETE

Groups

List active groupsGETCreate groupPOSTGet group infoGETUpdate group settingsPOSTDelete groupDELETEAdd participantsPOSTRemove participantsDELETECreate invite linkPOSTList join requestsGETApprove join requestsPOSTReject join requestsDELETE

Blocking

Check if a user is blockedGETList blocked usersGETBlock usersPOSTUnblock usersDELETE

Media

Download WhatsApp mediaGET

Conversions

Get CTWA conversions datasetGETProvision CTWA datasetPOSTList conversion eventsGETSend WhatsApp conversion eventPOST

Account Events

List account notificationsGET

Phone Numbers

Get number statusGETRegister a connected WhatsApp number on the Cloud APIPOSTMove a number to another profilePATCHRequest a Meta re-verification code for a BYO WhatsApp numberPOSTVerify the Meta re-verification code for a BYO WhatsApp numberPOST

Calling

Get calling config for an accountGETEnable calling on a numberPOSTUpdate calling configPATCHDisable calling on a numberDELETECheck call permissionGETList call history for an accountGETInitiate outbound callPOSTGet a single callGETEstimate per-minute costGETGet calling config for a numberGETGet a call recordingGETStart caller-ID verification for a customer-brought numberPOSTConfirm the caller-ID verification codePOST

Flows

List flowsGETCreate flowPOSTGet flowGETUpdate flowPATCHDelete flowDELETEGet flow JSON assetGETUpload flow JSONPUTGet flow preview URLGETList flow versionsGETPublish flowPOSTDeprecate flowPOSTSend flow messagePOSTList flow responsesGETGet Flows encryption key statusGETRegister a Flows encryption keyPOST

Sandbox

List your sandbox sessionsGETStart a sandbox activationPOSTRevoke a sandbox sessionDELETE
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OverviewPlatformsAPI ReferenceResources
WhatsApp

Provision CTWA dataset

Creates (or fetches, if one already exists) the Meta dataset that Click-to-WhatsApp ad events are reported against via the Conversions API, and persists its ID on the account as metadata.metaCapiDatasetId.

The call is GET-first idempotent: a WABA can only own one CTWA dataset, so a second call after a successful provision is a safe no-op that returns the same ID with created: false.

Requires the connected WhatsApp account's token to carry the whatsapp_business_manage_events permission. If the permission is missing the endpoint returns 422 with a message asking the user to reconnect the account.

POST
/v1/whatsapp/dataset

Authorization

bearerAuth
AuthorizationBearer <token>

API key authentication: send your Zernio API key in the Authorization header, prefixed with Bearer.

In: header

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

Response Body

application/json

application/json

{  "datasetId": "string",  "created": true}
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Get CTWA conversions dataset

Returns the Meta Click-to-WhatsApp conversions dataset currently linked to the WhatsApp account, if one has been provisioned. Reads only from the stored `metadata.metaCapiDatasetId`, never hits Meta, never creates a dataset. Use this to detect whether `POST /v1/whatsapp/conversions` is configured for an account.

List conversion events

Returns the most recent conversion events sent through `POST /v1/whatsapp/conversions` for the given WhatsApp account. Sourced from delivery logs (Axiom `late` dataset), so the visible window is bounded by log retention (about 30 days). Useful for rendering a "recent activity" panel on the conversions setup tab without standing up a parallel persistence layer. Per-event payload mirrors the structured log we write on every successful send: `eventName`, `conversationId`, `eventsReceived`, `eventsFailed`, `traceId`, `durationMs`, and the wall-clock `timestamp`.

accountId*string

WhatsApp account ID