# Display and store the deemed supplier in responses

Source: https://developer.avalara.com/vat-marketplace/certification-requirements/deemed-supplier-in-responses/

**Element type:** Required

**Endpoints/models used:** N/A

Your integration must store and return the deemed supplier of a transaction in transaction responses. In AvaTax transactions, the `deemedSupplier` field is returned at the line level in a response.

This requirement is handled through your backend and not via an AvaTax API call.

[![Closed](https://avalara-devdocs-prod.mcoutput.com/vat-marketplace/Skins/Default/Stylesheets/Images/transparent.gif)View example](javascript:void\(0\);)

```
 "lines": [  {    ...    "hsCode": "",    "costInsuranceFreight": 0,    "vatCode": "DESA190CIS",    "vatNumberTypeId": 0,    "deemedSupplier": "Marketplace"  }] 
```