---
title: "OneLake"
slug: "onelake"
updated: 2025-08-24T13:32:28Z
published: 2025-08-24T13:32:28Z
---

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

# OneLake

**OneLake** is Microsoft's unified data lake for the Microsoft Fabric platform, designed to store all organizational data in a single, secure, and accessible location. It enables data sharing and collaboration across teams and tools by standardizing storage on the Delta Parquet format and integrating natively with Fabric services.

## Prerequisites

          
          

- You have a **Microsoft Fabric** or an [Azure Blob Storage](/docs/azure-blob-storage) account.
- You have configured your network firewall to **allow incoming connection from [Dataddo IPs](/docs/network-acl)**.

## Authorize the Connection to OneLake

Creare a new OneLake ***authorizer*** using a Microsoft Fabric account or an Azure Blob Storage account.

### Using Microsoft Fabric

To authorize this service, use **OAuth 2.0** to share specific data with Dataddo while keeping usernames, passwords, and other information private.

1. On the **Authorizers** page, click on [Authorize New Service](https://app.dataddo.com/service/new) and select your service.
2. Follow the on-screen prompts to grant Dataddo the necessary permissions to **access and retrieve** your data.
3. **[Optional]** Once your ***authorizer*** is created, click on it to **change the label** for easier identification.

Ensure that the account you're granting access to holds at least **admin-level permissions**. If necessary, assign a team member with the required permissions with the [authorizer role](https://docs.dataddo.com/docs/user-roles#authorizer) to authenticate the service for you.

### Using Azure Blob Storage

To create a new OneLake Azure Blob Storage ***authorizer***, see the following article.

## Create a New OneLake Destination

1. On the **Destinations** page, click on the [**Create Destination**](https://app.dataddo.com/destinations) button and select the destination from the list.
2. Select your ***authorizer*** from the drop-down menu.
3. Name your ***destination*** and click on **Save**.

          Need to authorize another connection?

          

Click on **Add new Account** in drop-down menu during ***authorizer*** selection and follow the on-screen prompts. You can also go to the **Authorizers** tab and click on [**Add New Service**](https://app.dataddo.com/service/new).

## Create a Flow to OneLake

1. Navigate to **Flows** and click on [**Create Flow**](https://app.dataddo.com/flow/new).
2. Click on **Connect Your Data** to add your ***source(s)***.
3. Click on **Connect Your Data Destination** to add the ***destination***.
4. Choose the [write mode](https://docs.dataddo.com/docs/data-storages#write-modes) and fill in the other required information.
5. Check the **Data Preview** to see if your configuration is correct.
6. **Name** your flow and click on **Create Flow** to finish the setup.

---

## Related Articles

- [Data Backfilling to Storages](https://docs.dataddo.com/docs/data-backfilling-to-storages)
- [Write Modes](https://docs.dataddo.com/docs/data-storages#write-modes)
- [Implementation of Batch Ingestion to Data Warehouses](https://docs.dataddo.com/docs/ingestion-to-data-warehouses)
- [Network Access Control List (ACL) Configuration](https://docs.dataddo.com/docs/network-acl)
- [SSH Tunnelling](https://docs.dataddo.com/docs/ssh-tunnelling)
- [Data Transformations](https://docs.dataddo.com/docs/data-transformations)
- [Data Quality Firewall](https://docs.dataddo.com/docs/data-quality-firewall)

Authorizers act as credentials for external services (e.g. Facebook or Google). To enable Dataddo to access and retrieve your data, you need to grant access to accounts that possess admin-level permissions or higher within these services.