---
title: "Create a conversion destination"
method: POST
path: "/v1/accounts/{accountId}/conversion-destinations"
tags: ["Conversions"]
---

# Create a conversion destination

`POST /v1/accounts/{accountId}/conversion-destinations`

Create a new conversion destination on the platform. Supported for
LinkedIn (conversion rule) and Google Ads (conversion action). Meta
and OpenAI Ads pixels are created via their own tracking-tags flow
instead (`POST /v1/accounts/{accountId}/tracking-tags`); this endpoint
returns 405 for both.

**LinkedIn:** creation is NOT idempotent. A retry creates a second
destination. Deduplicate before retrying.

**Google Ads:** calling with a name that already exists reuses the
existing conversion action transparently (the response is identical to
a fresh create). Calling with the same name but a different category
returns a typed `IDEMPOTENCY_CONFLICT` (409) rather than silently
returning the mismatched action.

**LinkedIn:** the rule is created with `conversionMethod=CONVERSIONS_API`
and (by default) auto-associated with all of the ad account's campaigns
via `autoAssociationType=ALL_CAMPAIGNS`. Pass `autoAssociationType: NONE`
to opt out and manage associations explicitly via the associations
endpoints below.

365-day attribution windows are only valid for `SUBMIT_APPLICATION`,
`PURCHASE`, `ADD_TO_CART`, `QUALIFIED_LEAD`, and `LEAD` rule types;
the API rejects other combinations locally.

**Google Ads:** the conversion action is created with
`type=UPLOAD_CLICKS` (required for API-uploaded offline conversions,
immutable after creation). The `type` field carries the Google
`ConversionActionCategory` enum value, e.g. `PURCHASE`,
`SUBSCRIBE_PAID`, `SIGNUP`, `IMPORTED_LEAD`, `BOOK_APPOINTMENT`.
Unified standard event names (e.g. `Purchase`, `Subscribe`,
`CompleteRegistration`, `Lead`, `Schedule`) are resolved to their
Google category equivalents automatically. The action defaults to
secondary (non-primary) to avoid immediately steering Smart Bidding;
pass `primaryForGoal: true` to opt in.

## Path parameters

- `accountId` string, required

## Request body

- object
  - `adAccountId` string, required — Ad account ID. For LinkedIn: numeric (e.g. "5123456") or full `urn:li:sponsoredAccount:{id}` URN. For Google: numeric customer ID (e.g. "1234567890") or `customers/{id}` form.
  - `name` string, required
  - `type` string, required — Conversion type. For LinkedIn: a unified standard event name (e.g. "Purchase", "Lead", "AddToCart") or a LinkedIn rule type enum (e.g. "PURCHASE", "QUALIFIED_LEAD"). For Google: a unified standard event name (Purchase, Subscribe, CompleteRegistration, Lead, Schedule) or a Google ConversionActionCategory enum value directly (e.g. "PURCHASE", "SUBSCRIBE_PAID", "SIGNUP", "IMPORTED_LEAD", "BOOK_APPOINTMENT"). Unknown values pass through to the platform.
  - `attributionType` 'LAST_TOUCH_BY_CAMPAIGN' | 'LAST_TOUCH_BY_CONVERSION' — LinkedIn only.
  - `postClickAttributionWindowSize` 1 | 7 | 30 | 90 | 365 — LinkedIn only. Default 30. 365 only allowed for LEAD, PURCHASE, ADD_TO_CART, QUALIFIED_LEAD, SUBMIT_APPLICATION rule types; the API rejects other combinations locally.
  - `viewThroughAttributionWindowSize` 1 | 7 | 30 | 90 | 365 — LinkedIn only. Default 7. Same 365-day-window type restriction applies as `postClickAttributionWindowSize`.
  - `valueType` 'DYNAMIC' | 'FIXED' | 'NO_VALUE' — LinkedIn only. DYNAMIC (default) uses the per-event `value` from `sendConversions`. FIXED uses the rule's `value` field. NO_VALUE drops monetary value entirely.
  - `value` object — LinkedIn only. Static conversion value. Used when `valueType=FIXED`. The currency should match the ad account's currency.
    - `currencyCode` string, required — ISO 4217 (e.g. "USD").
    - `amount` string, required — Decimal string (e.g. "49.99").
  - `autoAssociationType` 'ALL_CAMPAIGNS' | 'OBJECTIVE_BASED' | 'NONE' — LinkedIn only. Controls campaign association at rule-creation time: - ALL_CAMPAIGNS: associate the rule with every active, paused, and draft campaign in the ad account - OBJECTIVE_BASED: associate only campaigns whose objective matches the rule's type - NONE: don't auto-associate. Manage associations via the `/associations` endpoints below. Note: auto-association runs once at create time; new campaigns added after the rule still need explicit association.
  - `countingType` 'MANY_PER_CLICK' | 'ONE_PER_CLICK' — Google Ads only. Whether to count multiple conversions from the same click (MANY_PER_CLICK) or at most one (ONE_PER_CLICK). Defaults to MANY_PER_CLICK if omitted.
  - `primaryForGoal` boolean — Google Ads only. When true, the conversion action is marked as primary and immediately influences Smart Bidding. Defaults to false (secondary, record-only) to avoid unintentionally steering the customer's campaigns on creation.

## Response `201`

Destination created

- object
  - `platform` 'linkedinads' | 'googleads'
  - `destination` ConversionDestination — A discoverable conversion destination on an ad platform — a Meta pixel, Google conversion action, or LinkedIn conversion rule. Returned by `listConversionDestinations`, `getConversionDestination`, `createConversionDestination`, and `updateConversionDestination`.
    - `id` string, required — Platform-native identifier. Pass back as `destinationId` on event send and as the path segment on CRUD endpoints.
    - `name` string, required
    - `type` string — Present when the platform locks the event type/category to the destination (Google conversion actions, LinkedIn conversion rules). Absent for Meta pixels (which accept any event name per request).
    - `status` 'active' | 'inactive' — For LinkedIn, `inactive` means the rule is soft-deleted (`enabled: false`).
    - `adAccountId` string — Set by adapters whose destinations are scoped to a specific ad account (LinkedIn). Pass back on subsequent CRUD calls to identify the parent ad account.

## Other responses

- `400` — Invalid body or platform validation failure.
- `401` — Unauthorized
- `403` — Ads access required (Ads add-on on legacy plans, included on usage-based plans), or the connected LinkedIn account lacks the `rw_conversions` scope (reconnect required).
- `404` — Account not found or not accessible.
- `405` — Platform does not support destination creation.
- `409` — Google Ads only. A conversion action with the given name already exists but has a different category. Use a different name or use the existing destination. Error code: `IDEMPOTENCY_CONFLICT`.
- `429` — Rate limit hit. Retry with backoff.

---

[API](https://skmtc.net/zernio/apis/zernio-api.md) · [All operations](https://skmtc.net/zernio/apis/zernio-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/zernio/zernio-api/revisions/15e893e69e8c/schema)