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Adds support for quantity adjustment to the Customer Portal Configuration API

What’s new

Adds the adjustable_quantity parameter to the products field of the Customer Portal Configuration object.

Impact

Before this change, you could only configure the quantity adjustment for the default Customer Portal Configuration object through the Dashboard. Now, you can also use the adjustable_quantity parameter to programmatically control the quantity that customers can modify on a Customer Portal page for all Customer Portal Configuration objects.

Changes

ParameterChangeResources or endpoints
adjustable_quantityAdded
BillingPortal.Configuration#create.features.subscription_update.products[]BillingPortal.Configuration#update.features.subscription_update.products[]BillingPortal.Configuration.features.subscription_update.products[]

Upgrade

  1. View your current API version 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 to include Stripe-Version: 2025-07-30.basil
  3. Upgrade the API version used for webhook endpoints.
  4. Test your integration against the new version.
  5. If you use Connect, test your Connect integration.
  6. In Workbench, perform the upgrade. You can roll back the version for 72 hours.

Learn more about Stripe API upgrades.

Related changes

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