---
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`

## Request

- Base URL: `https://api.criteo.com`
- URL: `https://api.criteo.com/2026-01/marketing-solutions/marketplace-performance-outcomes/advertisers/{advertiserId}/sellers`
- Auth: OAuth 2
  - Authorization code: `https://api.criteo.com/oauth2`
  - Client credentials
  - Token URL: `https://api.criteo.com/oauth2/token` scopes: `MarketingSolutions_Campaign_Manage`

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.dev/criteo/apis/criteo-api.md) - [All operations](https://skmtc.dev/criteo/apis/criteo-api/llms.txt) - [OpenAPI document](https://skmtc.dev/criteo/apis/criteo-api/revisions/c1721589426a?raw)