# Adds buyer ID support for Bizum payments ## What’s new Adds the [buyer_id](https://docs.stripe.com/api/payment_methods/object.md?api-version=2026-06-24.dahlia#payment_method_object-bizum-buyer_id) property to the [bizum](https://docs.stripe.com/api/payment_methods/object.md?api-version=2026-06-24.dahlia#payment_method_object-bizum) hash on the [Charge](https://docs.stripe.com/api/charges/object.md?api-version=2026-06-24.dahlia), [PaymentAttemptRecord](https://docs.stripe.com/api/payment-attempt-record/object.md?api-version=2026-06-24.dahlia), [PaymentRecord](https://docs.stripe.com/api/payment-record/object.md?api-version=2026-06-24.dahlia), and [PaymentMethod](https://docs.stripe.com/api/payment_methods/object.md?api-version=2026-06-24.dahlia) objects. The `buyer_id` is a unique identifier that [Bizum](https://docs.stripe.com/payments/bizum.md), a mobile payment method in Spain, assigns to the buyer. Stripe returns it on successful payments. ## Impact You can now read the `buyer_id` property from the `bizum` hash on the Charge, PaymentAttemptRecord, PaymentRecord, and PaymentMethod objects to uniquely identify the buyer in a Bizum transaction. Use this identifier to support fraud detection and risk management workflows in your integration. ## Changes #### REST API | Parameter | Change | Resources or endpoints | | --- | --- | --- | | `buyer_id` | Added | [Charge.payment_method_details.bizum](/api/charges/object?api-version=2026-06-24.dahlia#charge_object-payment_method_details-bizum), [PaymentAttemptRecord.payment_method_details.bizum](/api/payment-attempt-record/object?api-version=2026-06-24.dahlia#payment_attempt_record_object-payment_method_details-bizum), [PaymentRecord.payment_method_details.bizum](/api/payment-record/object?api-version=2026-06-24.dahlia#payment_record_object-payment_method_details-bizum), [ConfirmationToken.payment_method_preview.bizum](/api/confirmation_tokens/object?api-version=2026-06-24.dahlia#confirmation_token_object-payment_method_preview-bizum), [PaymentMethod.bizum](/api/payment_methods/object?api-version=2026-06-24.dahlia#payment_method_object-bizum) | #### Ruby | Parameter | Change | Resources or methods | | --- | --- | --- | | `buyer_id` | Added | [Charge::PaymentMethodDetail::Bizum](/api/charges/object?api-version=2026-06-24.dahlia#charge_object-payment_method_details-bizum), [PaymentAttemptRecord::PaymentMethodDetail::Bizum](/api/payment-attempt-record/object?api-version=2026-06-24.dahlia#payment_attempt_record_object-payment_method_details-bizum), [PaymentRecord::PaymentMethodDetail::Bizum](/api/payment-record/object?api-version=2026-06-24.dahlia#payment_record_object-payment_method_details-bizum), [ConfirmationToken::PaymentMethodPreview::Bizum](/api/confirmation_tokens/object?api-version=2026-06-24.dahlia#confirmation_token_object-payment_method_preview-bizum), [PaymentMethod::Bizum](/api/payment_methods/object?api-version=2026-06-24.dahlia#payment_method_object-bizum) | #### Python | Parameter | Change | Resources or methods | | --- | --- | --- | | `buyer_id` | Added | [Charge.PaymentMethodDetail.Bizum](/api/charges/object?api-version=2026-06-24.dahlia#charge_object-payment_method_details-bizum), [PaymentAttemptRecord.PaymentMethodDetail.Bizum](/api/payment-attempt-record/object?api-version=2026-06-24.dahlia#payment_attempt_record_object-payment_method_details-bizum), [PaymentRecord.PaymentMethodDetail.Bizum](/api/payment-record/object?api-version=2026-06-24.dahlia#payment_record_object-payment_method_details-bizum), [ConfirmationToken.PaymentMethodPreview.Bizum](/api/confirmation_tokens/object?api-version=2026-06-24.dahlia#confirmation_token_object-payment_method_preview-bizum), [PaymentMethod.Bizum](/api/payment_methods/object?api-version=2026-06-24.dahlia#payment_method_object-bizum) | #### PHP | Parameter | Change | Resources or methods | | --- | --- | --- | | `buyer_id` | Added | [Charge.payment_method_details.bizum](/api/charges/object?api-version=2026-06-24.dahlia#charge_object-payment_method_details-bizum), [PaymentAttemptRecord.payment_method_details.bizum](/api/payment-attempt-record/object?api-version=2026-06-24.dahlia#payment_attempt_record_object-payment_method_details-bizum), [PaymentRecord.payment_method_details.bizum](/api/payment-record/object?api-version=2026-06-24.dahlia#payment_record_object-payment_method_details-bizum), [ConfirmationToken.payment_method_preview.bizum](/api/confirmation_tokens/object?api-version=2026-06-24.dahlia#confirmation_token_object-payment_method_preview-bizum), [PaymentMethod.bizum](/api/payment_methods/object?api-version=2026-06-24.dahlia#payment_method_object-bizum) | #### Java | Parameter | Change | Resources or methods | | --- | --- | --- | | `buyerId` | Added | [Charge.payment_method_details.bizum](/api/charges/object?api-version=2026-06-24.dahlia#charge_object-payment_method_details-bizum), [PaymentAttemptRecord.payment_method_details.bizum](/api/payment-attempt-record/object?api-version=2026-06-24.dahlia#payment_attempt_record_object-payment_method_details-bizum), [PaymentRecord.payment_method_details.bizum](/api/payment-record/object?api-version=2026-06-24.dahlia#payment_record_object-payment_method_details-bizum), [ConfirmationToken.payment_method_preview.bizum](/api/confirmation_tokens/object?api-version=2026-06-24.dahlia#confirmation_token_object-payment_method_preview-bizum), [PaymentMethod.bizum](/api/payment_methods/object?api-version=2026-06-24.dahlia#payment_method_object-bizum) | #### Node.js | Parameter | Change | Resources or methods | | --- | --- | --- | | `buyer_id` | Added | [Charge.payment_method_details.bizum](/api/charges/object?api-version=2026-06-24.dahlia#charge_object-payment_method_details-bizum), [PaymentAttemptRecord.payment_method_details.bizum](/api/payment-attempt-record/object?api-version=2026-06-24.dahlia#payment_attempt_record_object-payment_method_details-bizum), [PaymentRecord.payment_method_details.bizum](/api/payment-record/object?api-version=2026-06-24.dahlia#payment_record_object-payment_method_details-bizum), [ConfirmationToken.payment_method_preview.bizum](/api/confirmation_tokens/object?api-version=2026-06-24.dahlia#confirmation_token_object-payment_method_preview-bizum), [PaymentMethod.bizum](/api/payment_methods/object?api-version=2026-06-24.dahlia#payment_method_object-bizum) | #### Go | Parameter | Change | Resources or methods | | --- | --- | --- | | `BuyerID` | Added | [ChargePaymentMethodDetailsBizum](/api/charges/object?api-version=2026-06-24.dahlia#charge_object-payment_method_details-bizum), [PaymentAttemptRecordPaymentMethodDetailsBizum](/api/payment-attempt-record/object?api-version=2026-06-24.dahlia#payment_attempt_record_object-payment_method_details-bizum), [PaymentRecordPaymentMethodDetailsBizum](/api/payment-record/object?api-version=2026-06-24.dahlia#payment_record_object-payment_method_details-bizum), [ConfirmationTokenPaymentMethodPreviewBizum](/api/confirmation_tokens/object?api-version=2026-06-24.dahlia#confirmation_token_object-payment_method_preview-bizum), [PaymentMethodBizum](/api/payment_methods/object?api-version=2026-06-24.dahlia#payment_method_object-bizum) | #### .NET | Parameter | Change | Resources or methods | | --- | --- | --- | | `BuyerId` | Added | [Charge.PaymentMethodDetails.Bizum](/api/charges/object?api-version=2026-06-24.dahlia#charge_object-payment_method_details-bizum), [PaymentAttemptRecord.PaymentMethodDetails.Bizum](/api/payment-attempt-record/object?api-version=2026-06-24.dahlia#payment_attempt_record_object-payment_method_details-bizum), [PaymentRecord.PaymentMethodDetails.Bizum](/api/payment-record/object?api-version=2026-06-24.dahlia#payment_record_object-payment_method_details-bizum), [ConfirmationToken.PaymentMethodPreview.Bizum](/api/confirmation_tokens/object?api-version=2026-06-24.dahlia#confirmation_token_object-payment_method_preview-bizum), [PaymentMethod.Bizum](/api/payment_methods/object?api-version=2026-06-24.dahlia#payment_method_object-bizum) | ## 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: 2026-06-24.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 - [Enables manual capture for Sunbit payments](https://docs.stripe.com/changelog/dahlia/2026-06-24/enables-manual-capture-for-sunbit-payments.md) - [Adds buyer ID support for BLIK payments](https://docs.stripe.com/changelog/dahlia/2026-06-24/blik-payments-buyer-id.md) - [Adds a fingerprint to Pix payment method details](https://docs.stripe.com/changelog/dahlia/2026-06-24/pix-fingerprint-payment-method-details.md) - [Adds transaction link ID to card payment method details for Mastercard and Maestro transactions](https://docs.stripe.com/changelog/dahlia/2026-06-24/card-payment-method-details-transaction-link-id.md) - [Adds payment method options for Sunbit in Checkout Sessions](https://docs.stripe.com/changelog/dahlia/2026-06-24/sunbit-checkout-pmo.md) - [Adds support for the Sui network and USDsui token for crypto payments](https://docs.stripe.com/changelog/dahlia/2026-06-24/sui-network-and-usdsui-token-support.md) - [Adds support for Mastercard compliance disputes](https://docs.stripe.com/changelog/dahlia/2026-06-24/mastercard-compliance-disputes.md) - [Adds support for recurring payments with Satispay](https://docs.stripe.com/changelog/dahlia/2026-06-24/satispay-recurring-payments.md)