Add People
Adds users from a new CSV file to an existing uploaded custom audience. The file uses the audience's saved column mapping, processing happens in the background, and existing audience members remain unchanged.
Path parameters
Audience ID, prefixed adaud_.
Headers
A unique key that makes this request safe to retry. See Idempotent requests.
Request body
Example request
{
"file_id": "file_xxxxxxxxxxxxxx"
}Response
Audience upload accepted.
Example response
{
"audience_type": "lookalike",
"created_at": "2026-01-01T12:00:00.000Z",
"engagement": {
"exclude": [
{
"event": "watched_50_percent",
"object": "video",
"platform_video_ids": [
"444"
],
"retention_days": 30,
"social_account_id": "sacc_xxxxxxxxxxxxxx"
}
],
"include": [
{
"event": "watched_50_percent",
"object": "video",
"platform_video_ids": [
"444"
],
"retention_days": 30,
"social_account_id": "sacc_xxxxxxxxxxxxxx"
}
],
"platform": "meta"
},
"error_message": "412 of 1,000 rows had no email or phone number, so the list could not be matched.",
"filters": {
"country": "US",
"last_seen_within_days": 30
},
"id": "adaud_xxxxxxxxxxxxxx",
"last_refreshed_at": "2026-01-01T12:00:00.000Z",
"lookalike_ratio": 0.04,
"lookalike_starting_ratio": 0.02,
"match_rates": [
{
"lower_bound": 40,
"platform": "meta",
"status": "available",
"upper_bound": 50
}
],
"name": "Past purchasers Lookalike 2–4%",
"platform_audience_ids": [
"120246230799130687"
],
"source_audience_id": "adaud_xxxxxxxxxxxxxx",
"source_type": "csv_upload",
"updated_at": "2026-01-01T12:00:00.000Z"
}Changes
Changed in 1 of the 74 revisions of this API.12
- ●
added the new
engagementenum value to theresponse property for the response statusresponse-property-enum-value-added
- ○
added the new optional
headerrequest parameterApi-Version-Dateto all path's operationsnew-optional-request-default-parameter-to-existing-path
- ○
added the required property
to the response with the statusresponse-required-property-added
This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog
- ●
Of the 74 revisions, 1 has no diff computed.