> ## Documentation Index
> Fetch the complete documentation index at: https://developers.criteo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Bulk Calls

> This page describes how to perform bulk calls towards Criteo Retail Media API

# General

Our "Reporting" endpoints allow for bulk operations. Specifically, through the two following endpoints:

<table>
  <thead>
    <tr>
      <th />

      <th />
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>
        <p>
          <b>
            POST
          </b>
        </p>
      </td>

      <td>
        <p>
          <code>
            /reports/campaigns
          </code>
        </p>
      </td>
    </tr>

    <tr>
      <td>
        <p>
          <b>
            POST
          </b>
        </p>
      </td>

      <td>
        <p>
          <code>
            /reports/line-items
          </code>
        </p>
      </td>
    </tr>
  </tbody>
</table>

You will be able to send us several `CampaignIds` or `LineItemIds`, with a **maximum of 50 IDs per call.**

To do so, please use the following attributes and terminology in one or the other endpoint (example below for the `POST` `/report/campaigns` endpoint, the same applies to the line-item endpoint):

<Info>
  When requesting a single ID then use: `"id": "CampaignId1"`

  OR

  When requesting several IDs then use `"ids": ["CampaignId1", "CampaignId2", ..., "CampaignIdn"]`
</Info>

<Warning>
  **Important**

  * Please make sure to **not use `id` and `ids` in the same call**, as this will lead to an invalid request.
  * There is a **100,000-row limit** for report output to keep in mind when making a bulk report request.
</Warning>

***

# Error Codes

When sending more than 50 IDs, you will get the following `400 Bad request` HTTP Response:

```json theme={null}
{
    "errors": [
        {
            "code": "exceeded-ids-cap",
            "title": "Requests are capped for 50 unique ids, 51 were provided",
            "type": "validation",
            "traceId": "aa47dd83-8ca9-4a79-a179-ad5be6932ff1",
            "instance": "/api/v1/reports/line-item",
            "detail": "ids Requests are capped for 50 unique ids, 51 were provided (Value: \"1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51\")",
            "source":{
                "ids": "data/attributes/ids"
            }
        }
    ]
}
```

This Contains:

* Error code: `exceeded-ids-cap`

* Error title: `Requests are capped for 50 unique ids, {count of ids requested} were provided`

* Error Type: `validation`

* A traceId: `aa47dd83-8ca9-4a79-a179-ad5be6932ff1`

* Instance: the report requested (here `/api/v1/reports/line-item`)

* Detail: Title with a list of requested IDs

* Source: The parameter that caused the error (IDs in this case)

## What's next

* [Campaign Structure](/retail-media/v2025.10/docs/campaign-structure)
* [List of Endpoints](/retail-media/v2025.10/docs/list-of-endpoints-including-preferred-deals)
* [Rate Limits](/retail-media/v2025.10/docs/rate-limits)
* [Statuses](/retail-media/v2024.10/docs/status)