# Adds a customer update deep link for billing portal sessions ## What’s new Adds `customer_update` as a value for the [flow_data.type](https://docs.stripe.com/api/customer_portal/sessions/create.md?api-version=2026-08-26.dahlia#create_portal_session-flow_data-type) parameter when you [create a billing portal session](https://docs.stripe.com/api/customer_portal/sessions/create.md?api-version=2026-08-26.dahlia). Setting this value creates a deep link that navigates your customer directly to the billing information page in the customer portal, where they can update their details. This is consistent with existing deep-link flow types such as `payment_method_update`, `subscription_cancel`, and `subscription_update`. ## Impact You can now create billing portal sessions that link customers directly to the billing information update page by setting `flow_data.type` to `customer_update`. No changes are required for existing integrations. ## Changes #### REST API | Parameter | Change | Resources or endpoints | | --- | --- | --- | | `customer_update` | Added | [BillingPortal.Session.flow](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow) | | Value | Change | Enums | | --- | --- | --- | | `customer_update` | Added | [BillingPortal.Session#create.flow_data.type](/api/customer_portal/sessions/create?api-version=2026-08-26.dahlia#create_portal_session-flow_data-type), [BillingPortal.Session.flow.type](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow-type) | #### Ruby | Parameter | Change | Resources or methods | | --- | --- | --- | | `customer_update` | Added | [BillingPortal::Session::Flow](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow) | #### Python | Parameter | Change | Resources or methods | | --- | --- | --- | | `customer_update` | Added | [BillingPortal.Session.Flow](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow) | | Value | Change | Enums | | --- | --- | --- | | `customer_update` | Added | [billing_portal.SessionCreateParamsFlowDatum.type](/api/customer_portal/sessions/create?api-version=2026-08-26.dahlia#create_portal_session-flow_data-type), [BillingPortal.Session.Flow.type](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow-type) | #### PHP | Parameter | Change | Resources or methods | | --- | --- | --- | | `customer_update` | Added | [BillingPortal.Session.flow](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow) | | Value | Change | Enum | | --- | --- | --- | | `customer_update` | Added | [BillingPortal.Session.flow.type](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow-type) | #### Java | Parameter | Change | Resources or methods | | --- | --- | --- | | `customerUpdate` | Added | [billingportal.Session.flow](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow) | | Value | Change | Enum | | --- | --- | --- | | `customer_update` | Added | [billingportal.SessionCreateParams.flow_data.type](/api/customer_portal/sessions/create?api-version=2026-08-26.dahlia#create_portal_session-flow_data-type) | #### Node.js | Parameter | Change | Resources or methods | | --- | --- | --- | | `customer_update` | Added | [BillingPortal.Session.flow](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow) | | Value | Change | Enums | | --- | --- | --- | | `customer_update` | Added | [BillingPortal.SessionCreateParams.flow_data.type](/api/customer_portal/sessions/create?api-version=2026-08-26.dahlia#create_portal_session-flow_data-type), [BillingPortal.Session.flow.type](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow-type) | #### Go | Parameter | Change | Resources or methods | | --- | --- | --- | | `CustomerUpdate` | Added | [BillingPortalSessionFlow](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow) | | Value | Change | Enum | | --- | --- | --- | | `customer_update` | Added | [BillingPortalSessionFlow.Type](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow-Type) | #### .NET | Parameter | Change | Resources or methods | | --- | --- | --- | | `CustomerUpdate` | Added | [BillingPortal.Session.Flow](/api/customer_portal/sessions/object?api-version=2026-08-26.dahlia#portal_session_object-flow) | ## Upgrade #### REST API 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 2. If you use an SDK, upgrade to the corresponding SDK version for this API version. - If you don’t use an SDK, update your [API requests](https://docs.stripe.com/api/versioning.md) to include `Stripe-Version: 2026-08-26.dahlia` 3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 4. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 6. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Ruby 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 2. Upgrade your Ruby SDK to the latest version. 3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 4. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 6. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Python 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 2. Upgrade your Python SDK to the latest version. 3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 4. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 6. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### PHP 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 2. Upgrade your PHP SDK to the latest version. 3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 4. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 6. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Java 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 2. Upgrade your Java SDK to the latest version. 3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 4. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 6. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Node.js 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 2. Upgrade your Node SDK to the latest version. 3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 4. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 6. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Go 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 2. Upgrade your Go SDK to the latest version. 3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 4. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 6. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### .NET 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 2. Upgrade your .NET SDK to the latest version. 3. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 4. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 5. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 6. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). ## Related changes - [Adds the ability to query entitlements and launch the customer portal in Customer Sessions](https://docs.stripe.com/changelog/dahlia/2026-08-26/customer-session-improvements.md) - [Adds frozen fields property to Invoice Items](https://docs.stripe.com/changelog/dahlia/2026-08-26/adds-frozen-fields-property-to-invoice-items.md) - [Adds support for the Billie payment method for invoices and subscriptions](https://docs.stripe.com/changelog/dahlia/2026-08-26/billie-support-for-invoices-and-subscriptions.md) - [Increases the subscription item limit](https://docs.stripe.com/changelog/dahlia/2026-08-26/flexible-subscription-item-limits.md)