---
title: "Get Modified Producers"
method: GET
path: "/api/data-transfer/v2/product/{productId}/modified-producers"
tags: ["Data Transfer"]
---

# Get Modified Producers

`GET /api/data-transfer/v2/product/{productId}/modified-producers`

Returns producer IDs for which either a new consent was granted or data has changed at the upstream provider since the given timestamp. Only producer IDs with a currently valid consent are included. This endpoint requires the product to have change detection configured.

## Path parameters

- `productId` string, uuid, required

## Query parameters

- `since` string, date, required

## Response `200`

OK

- ProducerIdentifier[]
  - `uid` string — Producer UID
  - `bur` string, nullable — Producer BUR, only set when the producer must additionally be identified by BUR.

## Other responses

- `401` — Not Authorized
- `403` — Not Allowed
- `404` — The resource or element was not found
- `500` — Internal server error: unexpected error

## Changes

- **2026-09-24** `1aa7b6ad5bcc` — 2 warning
  - added the new `UID_CLAIM_MISSING` enum value to the `type` response property for the response status `404`
  - added the new `UID_CLAIM_MISSING` enum value to the `type` response property for the response status `500`
- **2026-08-25** `fae9385c823e` — 2 info
  - api tag `Data Transfer` added
  - api tag `Data Transfer V2` removed
- **2026-08-18** `c478ae39b261` — 2 info
  - api tag `Data Transfer V2` added
  - api tag `Data Transfer` removed
- **2026-08-13** `a0609096db65` — 2 info
  - api tag `Data Transfer` added
  - api tag `Data Transfer V2` removed
- **2026-06-04** `d1729646b766` — 2 warning
  - added the new `DATA_PROVIDER_ERROR` enum value to the `type` response property for the response status `404`
  - added the new `DATA_PROVIDER_ERROR` enum value to the `type` response property for the response status `500`

[Full history](https://skmtc.dev/agridata/apis/agridata-ch-api/changes/api/data-transfer/v2/product/:productId/modified-producers/get.md)

---

[API](https://skmtc.dev/agridata/apis/agridata-ch-api.md) · [All operations](https://skmtc.dev/agridata/apis/agridata-ch-api/llms.txt) · [OpenAPI document](https://skmtc.dev/agridata/apis/agridata-ch-api/revisions/3b78238ff219?raw)