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Marketplace Protocol

The _Marketplace Protocol_ is a set of API requests and definitions to help you integrate external sellers into a VTEX marketplace as well as external marketplaces into VTEX sellers. ## External Seller Here you will find the endpoints involved in the integration between a VTEX marketplace and an external seller. Note that some of these requests are typically sent by the seller while others are received. | **Request** | **From** | **To** | |-|-|-| | Fulfillment simulation | Marketplace | Seller | | Order placement | Marketplace | Seller | | Authorize fulfillment | Marketplace | Seller | | Marketplace order cancellation | Marketplace | Seller | | Send invoice | Seller | Marketplace | | Send tracking information | Seller | Marketplace | | Update tracking status | Seller | Marketplace | | Cancel order in marketplace | Seller | Marketplace | For a detailed explanation of the steps required to develop a custom connector to sell products from an external seller in your storefront, check out our complete External Seller Integration Guide. ## External Marketplace In this section, you will find the endpoints involved in the VTEX integration between an external marketplace and a VTEX seller.

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Record checkpoints

  1. First observed: Sep 20, 2026
  2. Last directory-field change: Sep 20, 2026
  3. Current source observation: Sep 20, 2026

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