---
title: "/2026-01/marketing-solutions/marketplace-performance-outcomes/advertisers/{advertiserId}/sellers"
method: POST
path: "/2026-01/marketing-solutions/marketplace-performance-outcomes/advertisers/{advertiserId}/sellers"
tags: ["Campaign"]
---

# /2026-01/marketing-solutions/marketplace-performance-outcomes/advertisers/{advertiserId}/sellers

`POST /2026-01/marketing-solutions/marketplace-performance-outcomes/advertisers/{advertiserId}/sellers`

Create new sellers for an advertiser

## Path parameters

- `advertiserId` string, int32, required

## Query parameters

- `partnerId` integer

## Request body

- string[]

## Response `200`

Success

- SellerBase[]
  - `id` string — Unique seller identifier
  - `sellerName` string — Display name of the seller (merchant)

---

[API](https://skmtc.net/criteo/apis/criteo-api.md) · [All operations](https://skmtc.net/criteo/apis/criteo-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/criteo/criteo-api/revisions/c1721589426a/schema)