Get measurement source

Deprecated. This page documents the v2 buyer API, which is closed to new API clients and switches off on 1 December 2026. Use V3 instead: see Move a v2 buyer REST integration to V3. The conversion endpoint, Log event, stays open.

GET /api/v2/buyer/advertisers/{advertiserId}/measurement-sources/{sourceId} Returns the full configuration for one measurement source.

Request

curl https://api.apostra.com/api/v2/buyer/advertisers/12345/measurement-sources/a1b2c3d4-e5f6-7890-abcd-ef1234567890 \
  -H "Authorization: Bearer $SCOPE3_API_KEY"

Parameters

Field	Type	Required	Notes
`advertiserId`	string	Yes	Path parameter — the owning advertiser
`sourceId`	string	Yes	Path parameter — the source ID returned at creation

Response

{
  "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "advertiserId": "12345",
  "sourceKey": "acme_incr_rev",
  "name": "Acme Incrementality",
  "outcomeType": "incremental_revenue",
  "outcomeTypes": [],
  "granularity": "geo_week",
  "cadence": "weekly",
  "provider": "acme-mmm",
  "lagWeeks": 1,
  "signalWeight": 1,
  "status": "active",
  "vendor": null,
  "vendorMetrics": [],
  "createdAt": "2026-01-15T10:30:00Z",
  "updatedAt": "2026-01-15T10:30:00Z"
}

Errors

404 NOT_FOUND — sourceId (or advertiserId) does not exist or is not visible to the authenticated account.

See Errors for the full error contract.

Measurement tasks

All measurement operations

Measurement overview

Pipeline, belief state, and concepts

Update measurement source

Change source settings

Start building

Core Concepts

Buyer operations

Seller operations

Cross-Cutting Reference

Buyer API reference

Seller API reference

Release Notes

Get measurement source

Request

Parameters

Response

Errors

Measurement tasks

Measurement overview

Update measurement source

​Request

​Parameters

​Response

​Errors

​Related

Measurement tasks

Measurement overview

Update measurement source

Request

Parameters

Response

Errors

Related