Zernio
Zernio
API Reference

Accounts & Ops

Accounts

List ad accountsGETCreate Meta ad accountPOSTUpdate ad account settingsPATCHAd account financesGET

Activity

Ad account change / audit logGETList comments on an adGETReply to an ad commentPOSTHide or unhide an ad commentPOSTDelete an ad commentDELETE

Business Assets

Businesses listGETList TikTok Business CentersGETAd labelsGETA/B tests and lift studiesGETList Instagram ad identitiesGETList advertisable appsGETGet iOS 14 campaign limitsGETList TikTok ad pixelsGET

Extension Assets

List account calloutsGETAdd account calloutsPOSTUpdate account calloutsPUTRemove account calloutDELETEList account sitelinksGETAdd account sitelinksPOSTUpdate account sitelinksPUTRemove account sitelinkDELETEList account snippetsGETAdd account snippetsPOSTUpdate account snippetsPUTRemove account snippetDELETE

Negative Keyword Lists

List negative keyword listsGETCreate a negative keyword listPOSTGet a negative keyword listGETRename a negative keyword listPUTDelete a negative keyword listDELETEReplace negative list keywordsPUT

Custom Conversions

List custom conversionsGETCreate custom conversionPOST

Value Rules

List value rule setsGETCreate a value rule setPOSTRead a value rule setGETReplace a value rule setPUTDelete a value rule setDELETE

Budget Scheduling

List high-demand periodsGETSchedule a budget increasePOST

DSA Compliance

Get ad account DSA defaultsGETGet DSA recommendationsGET
Dashboard
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OverviewPlatformsAPI ReferenceResources
Accounts & Ops

List custom conversions

The ad account's Meta custom conversions, including archived ones (isArchived).

PlatformsMeta
GET
/v1/accounts/{accountId}/custom-conversions

Authorization

bearerAuth
AuthorizationBearer <token>

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

In: header

Path Parameters

accountId*string

Meta ads SocialAccount id.

Query Parameters

adAccountId*string

Meta ad account id (act_).

Response Body

application/json

application/json

application/json

application/json

{  "adAccountId": "string",  "data": [    {      "id": "string",      "name": "string",      "rule": {},      "customEventType": "string",      "pixelId": "string",      "isArchived": true    }  ]}
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Replace negative list keywords

Replaces the full desired keyword set. Existing keywords are diffed by normalized text and match type; creates and removals are applied atomically in one mutation. Unchanged criteria retain their ids. Send an empty keywords array to clear the list. Changes affect every campaign using this list. Each create or removal consumes one daily operation; the entire batch must fit the remaining quota.

Create custom conversion

Provision the Meta custom conversion an ads flow optimises toward, and hand back the `customConversionId` for `promotedObject.customConversionId` on POST /v1/ads/create. Removes the manual "create it in Ads Manager first" step. **Reuse is ours, not Meta's.** Meta's create is not idempotent, so a retried request would otherwise mint a duplicate carrying none of the original's optimisation history. A non-archived conversion with the same `name` on the same `pixelId` is returned instead of created, with `reused: true` and a 200 rather than a 201. `rule` is forwarded verbatim in Meta's own grammar (e.g. `{"url": {"i_contains": "thank-you"}}`); Meta validates it and rejects a malformed one with "A conversion rule is required at creation time".