Validate Customer IBANs for Subscription Billing
Neurodivergent founders need predictable subscription revenue. Stop losing recurring payments to IBAN typos--validate automatically.
Trigger
Page Properties Updated
Triggers when properties of a Notion page are updated. Customer optionally scopes with at most one of: - data_source_id: any row in this data source - page_id: this specific page - parent_page_id: any page whose immediate parent is this page With none set, fires for any property change in the workspace the integration has access to. Adding a column to a data source fires this trigger once per existing row. Customers can branch on `data.updated_properties` (array of property IDs) to filter downstream.
Action
Validate IBAN
Tool to validate the format and country code of an iban number. use after collecting an iban to ensure it is correctly formatted.
Why this helps
Invalid customer IBANs cause recurring billing failures, lost revenue, and customer churn.
- Prevent recurring billing failures from IBAN typos
- Maximize subscription revenue by ensuring payments go through
- Reduce billing support requests and customer frustration
Setup
Build it in a few focused steps.
- 1Connect your Notion subscription customer database and Abstract account to Notis.
- 2Tell Notis: 'When a customer's billing IBAN is updated in my subscription database, validate that IBAN format immediately.'
- 3Set trigger to 'Page Properties Updated' on your customers table.
- 4Select your notification channel for validation alerts.
- 5Update a test customer's IBAN to confirm the validation workflow.
Questions about this workflow
What happens if a customer's IBAN fails validation?
Notis will alert you and flag the record in Notion so you can contact the customer to request a corrected IBAN before the next billing cycle.
Can I automatically retry billing if IBAN validation fails?
Yes--set up a follow-up workflow to create a task for manual outreach to the customer, or automate a billing retry once a corrected IBAN is received.
How often should I re-validate customer IBANs?
Re-validate on each update, plus you can ask Notis to run a monthly check on all active customer IBANs to catch any account changes.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Notion to Abstract. A trigger fires from one place; an action lands in another.
Notion triggers
Abstract actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Validate IBAN
Tool to validate the format and country code of an iban number. use after collecting an iban to ensure it is correctly formatted.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Email reputation
Tool to enrich an email address with reputation and risk scoring data. use when you need to assess an address's deliverability and risk before outreach. use after confirming your api key is valid.
All Page Events
Triggers when any Notion page is created or updated across the workspace.
Email Validation
Tool to validate whether an email address is real and deliverable. use after collecting an email address to confirm deliverability.
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.
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Notion and Abstract, or any other combination from 1,000+ integrations.
When this happens · Trigger
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