Set up write access

Set up write access to enable the use of features like input tables, warehouse views, materialization, and CSV upload.

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If your organization uses OAuth to authenticate your connection, there are additional configuration steps. See Configure OAuth with write access.

System and user requirements

You must be assigned the Admin account type.
You must have the necessary permissions in your cloud data warehouse (CDW) to create a write access destination and configure permissions.

Set up destinations and permissions for write access in your data platform

To set up write access, ensure that Sigma has sufficient permissions in your data platform.

Each CDW has a unique database structure and permissions model. Follow the documentation for your CDW to create a destination that Sigma can use to write data back to, and apply the necessary permissions to allow Sigma to perform write back using the authentication you have configured.

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When you designate a schema as the write access destination, Sigma reserves it for internal write-back objects and doesn’t expose it as a data source in the connection explorer (data catalog). To avoid restricting user access to analytical data, use a dedicated write-back database or schema that doesn’t store data used for analysis and reports.

Configure write access in Sigma

Select Administration in the user menu at the top right of your screen.
Select the Connections page from the left panel.
To view the connection, click on an existing connection in the list.
Click Edit.
Under Write access, switch on Enable write access.
Sigma requests additional information for write access; this information depends on the specifics of your CDW: Snowflake, BigQuery, PostgreSQL, Redshift, Databricks, AlloyDB, and MySQL.
After completing the form, click Save.