Azure Data Lake

Import files from Azure Data Lake Storage (Gen2) containers, or query Parquet in them directly.

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Setting up the connection

1. In the Import Manager, click the Azure Data Lake card

2. Choose one of four authentication methods, then fill in its fields:

Auth method	Fields
Connection String	The storage account connection string
Account Key	Account Name + Account Key
Service Principal	Account Name + Tenant ID + Client ID + Client Secret
Managed Identity	Account Name (for deployments running inside Azure)

All methods also take a Default Container, the storage container used for imports.

1. Click Test connection to verify, then Save & continue

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Importing data

Browse under Select Container, Folder, and File, or type the container and blob path, for example exports/2026/sales.parquet. Format is auto-detected (CSV, Parquet or JSON) and sub-folders can be included. A multi-file import creates a folder source with one child per file.

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Import modes

Full Import, Full Import + Live, Recent Rows, Time Period and Query Directly. Rolling windows re-read the path on each sync and need a single object. Query Directly reads Parquet only. See Connectors.

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Troubleshooting

Authorization failure

• For service principals, grant the Storage Blob Data Reader role on the account or container

Container not found

• Container names are lowercase; check the Default Container

Firewall

• If the storage account restricts networks, allow RootCause's address