---
title: "Call ads.create_conversion_action"
method: POST
path: "/api/v1/tools/ads.create_conversion_action"
tags: ["ads"]
---

# Call ads.create_conversion_action

`POST /api/v1/tools/ads.create_conversion_action`

## Request

- Base URL: `https://app.goosybear.ai`
- URL: `https://app.goosybear.ai/api/v1/tools/ads.create_conversion_action`
- Auth: HTTP bearer

Create the measurement a Google Ads campaign optimises toward — 'set up a conversion action', 'add a conversion goal for Performance Max'. Create a Google Ads conversion action for this brand — the measurement a campaign optimises toward — and report what Google read back afterwards. It spends nothing: it creates no budget and attaches to no campaign. A Performance Max campaign needs one before it can bid. Reuse the same idempotency_key on a retry so a retry cannot create a second one. Not for choosing which Google Analytics conversions the brand reports — that is `connections.set_conversion_events`. Over the API it answers in two calls: without confirmation_id it proposes — says what would happen, returns a confirmation_id and changes, spends and sends nothing; the same arguments again with that confirmation_id, on a member's own API key, do it.

Every result names the workspace it ran in. Say which workspace the answer is about. When the account has more than one workspace and none is selected, this tool refuses with `workspace_ambiguous` and lists the choices — offer them, never pick one.

## Headers

- `x-request-id` string
- `Idempotency-Key` string, required

## Request body

- object
  - `name` string, required: What this conversion is called.
  - `shape` 'website' | 'website_call' | 'ad_call', required: What is being measured: a website action, a call from the website, or a call placed straight from the ad.
  - `category` string, nullable: Google's conversion category, when the operator names one.
  - `phone_call_duration_seconds` integer, nullable: How long a call must last to count. REQUIRED on website_call and ad_call — without it every dialled-and-hung-up call is recorded as a lead. Google rejects it on a website conversion.
  - `default_value_usd_cents` integer, nullable: What one conversion is worth, in cents.
  - `primary_for_goal` boolean: Whether this counts toward the account's main conversions goal, which is what makes it usable as a bidding target.
  - `idempotency_key` string: Deprecated on REST: send the `Idempotency-Key` header instead. Still accepted until 2026-12-31; if both are sent they must match.
  - `confirmation_id` string, uuid: Omit to propose: the first call says what would happen, returns a confirmation_id and changes nothing. To go ahead, send the same arguments again with that confirmation_id, on a member's own API key; a service account's key can propose but never confirm.
  - `workspace` string: Which workspace to run in — its slug. Omit to use your default. With more than one reachable workspace and no default, the call is refused and the choices are listed.

## Response `200`

The call was admitted and dispatched. `ok` says whether the tool succeeded — a refusal the tool itself produced is still a 200, exactly as it is a successful JSON-RPC result over MCP.

- union
  - object: The tool ran and answered.
    - `ok` true, required
    - `state` 'confirmation_required'
    - `confirmation_id` string, uuid
    - `expires_in_seconds` integer
    - `request_summary` string: What will happen, in one sentence, for a person to approve before confirming.
    - `resource_name` string
    - `id` string
    - `name` string
    - `type` string
    - `category` string
    - `status` string
    - `primary_for_goal` boolean
    - `workspace` string, required: The slug of the workspace this call ran in.
    - `working_in` object, required: Which workspace this call ran in, and how that was decided. Present on every workspace-scoped result.
      - `label` string, required: The chip words — e.g. "working in: Acme Main".
      - `note` string, required: Why this workspace — e.g. "your default", "this call only".
      - `workspace` string, required: The resolved workspace's slug.
      - `source` 'call-override' | 'key-pin' | 'stored-default' | 'sole-reachable', required: Which rung of the R7 precedence resolved the workspace.
  - ToolRefusal: A call that was admitted and dispatched, and did not succeed.
    - `ok` false, required
    - `code` string, required: The typed reason — e.g. `workspace_ambiguous`, `invalid_arguments`, or the tool's own failure code.
    - `message` string, required: A sentence a person can act on.
    - `workspaces` string[]: On a workspace refusal: the slugs this key may pass as `workspace`.
    - `issues` object[]: On `invalid_arguments`: which fields failed, and why.
      - `path` string, required
      - `message` string, required
    - `path` string: On an authoring refusal: where in your call's input it points, e.g. `steps.<key>.params.<field>`.
    - `fix` string: On an authoring refusal: the change to your call that would pass.
    - `instruction` string: On an authoring refusal: what to do next with it.

## Other responses

- `400`: The request could not be used: the body is present but not a JSON object (`tenant_api.malformed_body`); it is a top-level array carrying more messages than this endpoint accepts (`tenant_mcp.batch_too_large`); or the `Idempotency-Key` header is malformed (`tenant_api.idempotency_key_invalid`), disagrees with the body's `idempotency_key` (`tenant_api.idempotency_key_conflict`), or was sent to an action that cannot replay a retry (`tenant_api.idempotency_unsupported`). Nothing ran.
- `401`: No bearer credential, or one that did not resolve. Deliberately ONE undifferentiated answer for absent / unknown / revoked / expired, so the endpoint is never an oracle over the key space.
- `403`: The credential is good but the surface is not open to it — the platform or account API switch is off, or the holder lacks the `api.access` capability. The `code` says which.
- `404`: No such tool. The body names no tool and is identical for every unrecognised name.
- `429`: Over this key's per-minute cap. Carries `Retry-After` and `error.retry_after_seconds`.

---

[API](https://skmtc.dev/goosybear/apis/goosy-bear-api.md) · [All operations](https://skmtc.dev/goosybear/apis/goosy-bear-api/llms.txt) · [OpenAPI document](https://skmtc.dev/goosybear/apis/goosy-bear-api/revisions/6d82fb124064?raw)