Automatically track Notion schema changes in BigQuery
Schema changes in Notion break queries and confuse downstream work. Notis logs every column add, remove, and rename to BigQuery so you catch changes before they cause problems.
Trigger
Data Source Schema Updated
Triggers when a Notion data source's schema is updated. Fires on column add / remove / rename. Payload includes `data.updated_properties: [{id, name, action}]` so consumers can discriminate the kind of change downstream. Optional `data_source_id` filter scopes to schema changes on a single data source. When omitted, fires for any schema change in the workspace the integration has access to. Note: adding a column also fires `page.properties_updated` once per existing row in the data source. Customers wanting a single structural-change signal should use this trigger.
Action
Query
Query tool will run a sql query in bigquery. note: make sure the query being input in a single line format. for example, select * from sample dataset.sample table where column name = 'value'
Why this helps
Notion schema changes (adding columns, renaming fields) silently break BigQuery queries. There's no audit trail of when columns were added or removed, so debugging is a guessing game.
- Catch schema changes immediately before they break queries
- Build schema change alerts and notifications
- Track column lifecycle (creation, renames, deletion) for compliance
- Automate downstream impact analysis by querying schema change history
Setup
Build it in a few focused steps.
- 1Connect Notion workspace to Notis.
- 2Connect Google BigQuery to Notis.
- 3Ask Notis: 'When a Notion data source schema is updated, log the data source ID, updated column names, action type (add/remove/rename), timestamp, and editor email to BigQuery.'
- 4Select 'Data Source Schema Updated' as the trigger.
- 5Pick your reporting channel.
- 6Test by adding or renaming a column in a Notion data source and confirming the record in BigQuery.
Questions about this workflow
Will this log single column changes or batch updates?
Both. Notis receives the schema update event which includes all changed properties, and logs them as detailed records.
Does adding a column fire other events too?
Yes. Adding a column also fires 'Page Properties Updated' once per existing row. Use 'Data Source Schema Updated' for a single structural-change signal.
Can I filter to specific data sources?
Yes. Notis can scope the trigger to log schema changes only for certain data sources.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Notion to Google BigQuery. A trigger fires from one place; an action lands in another.
Notion triggers
Google BigQuery actions
All Page Events
Triggers when any Notion page is created or updated across the workspace.
Query
Query tool will run a sql query in bigquery. note: make sure the query being input in a single line format. for example, select * from sample dataset.sample table where column name = 'value'
Comment Created
Triggers when a new comment is created in Notion. Optional `page_id` filter scopes to comments on a specific page. When omitted, fires for any new comment in the workspace the integration has access to. Requires the 'Read comments' capability on the Notion integration. If a connection was authorized before that capability was enabled, the user must re-authorize the connection for comment events to flow.
New Comment
Triggers when a new comment is added to a specified Notion block or page.
Database Created
Triggers when a new Notion database (the container) is created. A database is the post-2025-09-03 container that holds one or more data sources. This trigger fires for the container's creation event (`database.created`), distinct from `NOTION_DATASOURCE_CREATED` which fires when a new data source is added to an existing database. Most customers calling Notion's `POST /v1/databases` (the legacy API) or creating a database via the Notion UI will see this event. Adding a new data source to an existing database fires `data_source.created` instead — use `NOTION_DATASOURCE_CREATED` for that. Notion's payload puts `entity.type: "block"` (the container is a `child_database` block in the content tree) and `entity.id` is the database id.
Data Source Created
Triggers when a new Notion data source is created. Fires workspace-wide. The payload's `data.parent` carries the data source's tree parent (typically the teamspace) for downstream filtering. A single template-based database creation can fire multiple `data_source.created` events at once — one per data source the template instantiates.
Data Source Schema Updated
Triggers when a Notion data source's schema is updated. Fires on column add / remove / rename. Payload includes `data.updated_properties: [{id, name, action}]` so consumers can discriminate the kind of change downstream. Optional `data_source_id` filter scopes to schema changes on a single data source. When omitted, fires for any schema change in the workspace the integration has access to. Note: adding a column also fires `page.properties_updated` once per existing row in the data source. Customers wanting a single structural-change signal should use this trigger.
New Page
Triggers when a new page is added to a Notion database.
Page Added to Page
Fires when a new subpage (a `child_page` type block) is added under a specified parent Notion page.
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