# PayPal Business — Developer Resources

Developer tools, sandbox testing, legacy integrations, and reference materials

- [Apps, scopes, and credentials](/apps-scopes-and-credentials)
- [Card testing](/credit-card-number-generator)
- [Developer resources](/developer-resources): Dive deep into the weeds of our detailed developer guidance.
- [International Bank Account Number (IBAN) generator](/iban-generator)
- [Secure file transfer with DropZone](/secure-file-transfer)
- [PayPal security guidelines for developers](/security-guidelines)
- [Upgrade from JavaScript SDK v4 to latest version](/v4-v6): Update your PayPal JavaScript integration from checkout.js (v4) to PayPal Web SDK v6. Move to the createInstance() architecture, explicit eligibility checks, and session-based payment flows.
- [Upgrade from JavaScript SDK v5 to latest version](/v5-v6): Upgrade your existing PayPal JavaScript SDK v5 integration to v6.
- [PayPal for Visual Studio Code](/vs-code-extension)
- [Agent tools reference](/ai-tools/agent-tools)
- [LLM integration quickstart guide](/ai-tools/build-with-llm)
- [PayPal's AI resources for developers](/ai-tools/get-started)
- [MCP server quickstart guide](/ai-tools/mcp-server)
- [Best practices for prompts](/ai-tools/prompts)
- [Agent toolkit quickstart guide](/ai-tools/toolkit)
- [Get started with PayPal REST APIs](/api/get-started)
- [Handling API responses when integrating with PayPal APIs](/api/handle-api-responses)
- [Making PayPal REST API requests](/api/make-api-requests)
- [Rate limiting with PayPal REST APIs](/api/rate-limiting)
- [Test error conditions with negative testing](/negative-testing/overview)
- [Simulate negative responses with request headers](/negative-testing/request-headers)
- [Simulate negative responses with test values](/negative-testing/values)
- [Country codes](/reference/country-codes): Use these country codes when you specify country in API requests and account configurations.
- [Currency codes](/reference/currency-codes): Use these currency codes when you specify currency in API requests and interpret currency fields in reports.
- [Code, guideline, and policy reference for developers](/reference)
- [Locale codes](/reference/locale-codes): Use these locale codes to configure language and regional display settings in your PayPal integration.
- [State and province codes](/reference/state-codes): Reference for state and province codes accepted by PayPal REST APIs
- [Sandbox accounts](/sandbox-testing/accounts): Guide on how to create and manage personal and business PayPal sandbox accounts
- [Bulk upload sandbox accounts](/sandbox-testing/bulk-accounts)
- [Make test requests](/sandbox-testing/calls)
- [Card testing](/sandbox-testing/card-testing)
- [Test error handling](/sandbox-testing/error-handling)
- [PayPal sandbox testing guide](/sandbox-testing/overview): Developer guide for sandbox testing
- [Country codes](/api/codes/country-region)
- [Currency codes](/api/codes/currency)
- [Locale codes](/api/codes/locale)
- [Code, guideline, and policy reference for developers](/api/codes/overview)
- [State & province codes](/api/codes/state-or-province)
- [Handling payment failures with PayPal](/api/handle-payment-failures)
- [Webhooks guide](/api/webhooks/overview)
- [Browser support](/reference/guidelines/browser-support)
- [Idempotency](/reference/guidelines/idempotency)
- [Development guidelines](/reference/guidelines)
- [Security guidelines and best practices](/reference/guidelines/info-security-guidelines)
- [Development policies and guidelines](/reference/guidelines/policiesAndGuidelines)
- [Rate limiting guidelines](/reference/guidelines/rate-limiting)
- [AVS, CVV2, and payment advice response codes](/api/nvp-soap/AVSResponseCodes)
- [PayPal NVP API basics](/api/nvp-soap/NVPAPIOverview)
- [PayPal SOAP API basics](/api/nvp-soap/PayPalSOAPAPIArchitecture)
- [Adaptive API](/api/nvp-soap/adaptive-platform)
- [AddBankAccount API operation](/api/nvp-soap/add-bank-account)
- [AddPaymentCard API operation](/api/nvp-soap/add-payment-card)
- [AddressVerify API operation (SOAP)](/api/nvp-soap/address-verify-soap)
- [Create and manage NVP/SOAP API credentials](/api/nvp-soap/apiCredentials)
- [Learn about NVP/SOAP API apps](/api/nvp-soap/apps101)
- [BAUpdate API operation (NVP)](/api/nvp-soap/ba-update-nvp)
- [BAUpdate API operation (SOAP)](/api/nvp-soap/ba-update-soap)
- [BillOutstandingAmount API operation (NVP)](/api/nvp-soap/bill-outstanding-amount-nvp)
- [BillOutstandingAmount API operation (SOAP)](/api/nvp-soap/bill-outstanding-amount-soap)
- [BMButtonSearch API operation (NVP)](/api/nvp-soap/button-search-nvp)
- [BMButtonSearch API operation (SOAP)](/api/nvp-soap/button-search-soap)
- [Callback API operation (NVP)](/api/nvp-soap/callback-nvp)
- [CancelInvoice API operation](/api/nvp-soap/cancel-invoice)
- [CancelPermissions API operation](/api/nvp-soap/cancel-permissions)
- [CheckComplianceStatus API operation](/api/nvp-soap/check-compliance-status)
- [Country and region codes](/api/nvp-soap/country-codes)
- [CreateAccount API operation](/api/nvp-soap/create-account)
- [CreateAndSendInvoice API operation](/api/nvp-soap/create-and-send-invoice)
- [CreateBillingAgreement API operation (NVP)](/api/nvp-soap/create-billing-agreement-nvp)
- [CreateBillingAgreement API operation (SOAP)](/api/nvp-soap/create-billing-agreement-soap)
- [BMCreateButton API operation (NVP)](/api/nvp-soap/create-button-nvp)
- [BMCreateButton API operation (SOAP)](/api/nvp-soap/create-button-soap)
- [CreateInvoice API operation](/api/nvp-soap/create-invoice)
- [CreateRecurringPaymentsProfile API operation (NVP)](/api/nvp-soap/create-recurring-payments-profile-nvp)
- [CreateRecurringPaymentsProfile API operation (SOAP)](/api/nvp-soap/create-recurring-payments-profile-soap)
- [Currency codes](/api/nvp-soap/currency-codes)
- [DeleteInvoice API operation](/api/nvp-soap/delete-invoice)
- [DoAuthorization API operation (NVP)](/api/nvp-soap/do-authorization-nvp)
- [DoAuthorization API operation (SOAP)](/api/nvp-soap/do-authorization-soap)
- [DoCapture API operation (NVP)](/api/nvp-soap/do-capture-nvp)
- [DoCapture API operation (SOAP)](/api/nvp-soap/do-capture-soap)
- [DoDirectPayment API operation (NVP)](/api/nvp-soap/do-direct-payment-nvp)
- [DoDirectPayment API operation (SOAP)](/api/nvp-soap/do-direct-payment-soap)
- [DoExpressCheckoutPayment API operation (NVP)](/api/nvp-soap/do-express-checkout-payment-nvp)
- [DoExpressCheckoutPayment API operation (SOAP)](/api/nvp-soap/do-express-checkout-payment-soap)
- [DoNonReferencedCredit API operation (NVP)](/api/nvp-soap/do-nonreferenced-credit-nvp)
- [DoNonReferencedCredit API operation (SOAP)](/api/nvp-soap/do-nonreferenced-credit-soap)
- [DoReauthorization API operation (NVP)](/api/nvp-soap/do-reauthorization-nvp)
- [DoReauthorization API operation (SOAP)](/api/nvp-soap/do-reauthorization-soap)
- [DoReferenceTransaction API operation (NVP)](/api/nvp-soap/do-reference-transaction-nvp)
- [DoReferenceTransaction API operation (SOAP)](/api/nvp-soap/do-reference-transaction-soap)
- [DoVoid API operation (NVP)](/api/nvp-soap/do-void-nvp)
- [DoVoid API operation (SOAP)](/api/nvp-soap/do-void-soap)
- [NVP/SOAP API endpoints](/api/nvp-soap/endpoints)
- [API error codes](/api/nvp-soap/errors): Reference document for NVP/SOAP API Error Codes
- [GenerateInvoiceNumber API operation](/api/nvp-soap/generate-invoice-number)
- [GetAccessToken API operation](/api/nvp-soap/get-access-token)
- [GetAdvancedPersonalData API operation](/api/nvp-soap/get-advanced-personal-data)
- [GetBalance API operation (NVP)](/api/nvp-soap/get-balance-nvp)
- [GetBalance API operation (SOAP)](/api/nvp-soap/get-balance-soap)
- [GetBasicPersonalData API operation](/api/nvp-soap/get-basic-personal-data)
- [GetBillingAgreementCustomerDetails API operation (NVP)](/api/nvp-soap/get-billing-agreement-customer-details-nvp)
- [GetBillingAgreementCustomerDetails API operation (SOAP)](/api/nvp-soap/get-billing-agreement-customer-details-soap)
- [BMGetButtonDetails API operation (NVP)](/api/nvp-soap/get-button-details-nvp)
- [BMGetButtonDetails API operation (SOAP)](/api/nvp-soap/get-button-details-soap)
- [GetExpressCheckoutDetails API operation (NVP)](/api/nvp-soap/get-express-checkout-details-nvp)
- [GetExpressCheckoutDetails API operation (SOAP)](/api/nvp-soap/get-express-checkout-details-soap)
- [BMGetInventory API operation (NVP)](/api/nvp-soap/get-inventory-nvp)
- [BMGetInventory API operation (SOAP)](/api/nvp-soap/get-inventory-soap)
- [GetInvoiceDetails API operation](/api/nvp-soap/get-invoice-details)
- [GetPalDetails API operation (NVP)](/api/nvp-soap/get-paldetails-nvp)
- [GetPalDetails API operation (SOAP)](/api/nvp-soap/get-paldetails-soap)
- [GetPermissions API operation](/api/nvp-soap/get-permissions)
- [GetRecurringPaymentsProfileDetails API operation (NVP)](/api/nvp-soap/get-recurring-payments-profile-details-nvp)
- [GetRecurringPaymentsProfileDetails API operation (SOAP)](/api/nvp-soap/get-recurring-payments-profile-details-soap)
- [Get started](/api/nvp-soap/get-started)
- [GetTransactionDetails API operation (NVP)](/api/nvp-soap/get-transaction-details-nvp)
- [GetTransactionDetails API operation (SOAP)](/api/nvp-soap/get-transaction-details-soap)
- [GetUserAgreement API operation](/api/nvp-soap/get-user-agreement)
- [GetVerifiedStatus API operation](/api/nvp-soap/get-verified-status)
- [Get started with PayPal NVP/SOAP APIs](/api/nvp-soap/gs-PayPalAPIs)
- [NVP and SOAP API reference](/api/nvp-soap)
- [Locale codes](/api/nvp-soap/locale-codes)
- [BMManageButtonStatus API operation (NVP)](/api/nvp-soap/manage-button-status-nvp)
- [BMManageButtonStatus API operation (SOAP)](/api/nvp-soap/manage-button-status-soap)
- [ManagePendingTransactionStatus API operation (NVP)](/api/nvp-soap/manage-pending-transaction-status-nvp)
- [ManagePendingTransactionStatus API operation (SOAP)](/api/nvp-soap/manage-pending-transaction-status-soap)
- [ManageRecurringPaymentsProfileStatus API operation (NVP)](/api/nvp-soap/manage-recurring-payments-profile-status-nvp)
- [ManageRecurringPaymentsProfileStatus API operation (SOAP)](/api/nvp-soap/manage-recurring-payments-profile-status-soap)
- [MarkInvoiceAsPaid API operation](/api/nvp-soap/mark-invoice-as-paid)
- [MarkInvoiceAsRefunded API operation](/api/nvp-soap/mark-invoice-as-refunded)
- [MarkInvoiceAsUnpaid API operation](/api/nvp-soap/mark-invoice-as-unpaid)
- [MassPay API operation (NVP)](/api/nvp-soap/masspay-nvp)
- [MassPay API operation (SOAP)](/api/nvp-soap/masspay-soap)
- [PayPal NVP API](/api/nvp-soap/nvp)
- [PayPal NVP/SOAP API SDKs](/api/nvp-soap/nvpsoap-sdks)
- [Payment data transfer](/api/nvp-soap/payment-data-transfer)
- [API reference](/api/nvp-soap/reference)
- [RefundTransaction API operation (NVP)](/api/nvp-soap/refund-transaction-nvp)
- [RefundTransaction API operation (SOAP)](/api/nvp-soap/refund-transaction-soap)
- [RemindInvoice API operation](/api/nvp-soap/remind-invoice)
- [RequestPermissions API operation](/api/nvp-soap/request-permissions)
- [SearchInvoices API operation](/api/nvp-soap/search-invoices)
- [SendInvoice API operation](/api/nvp-soap/send-invoice)
- [SetCustomerBillingAgreement API operation (NVP)](/api/nvp-soap/set-customer-billing-agreement-nvp)
- [SetCustomerBillingAgreement API operation (SOAP)](/api/nvp-soap/set-customer-billing-agreement-soap)
- [SetExpressCheckout API operation (NVP)](/api/nvp-soap/set-express-checkout-nvp)
- [SetExpressCheckout API operation (SOAP)](/api/nvp-soap/set-express-checkout-soap)
- [SetFundingSourceConfirmed API operation](/api/nvp-soap/set-funding-source-confirmed)
- [BMSetInventory API operation (NVP)](/api/nvp-soap/set-inventory-nvp)
- [BMSetInventory API operation (SOAP)](/api/nvp-soap/set-inventory-soap)
- [PayPal SOAP API](/api/nvp-soap/soap)
- [PayPal state and province codes](/api/nvp-soap/state-codes)
- [Supported formats](/api/nvp-soap/supported-formats)
- [TransactionSearch API operation (NVP)](/api/nvp-soap/transaction-search-nvp)
- [TransactionSearch API operation (SOAP)](/api/nvp-soap/transaction-search-soap)
- [UpdateAuthorization API operation (NVP)](/api/nvp-soap/update-authorization-nvp)
- [UpdateAuthorization API operation (SOAP)](/api/nvp-soap/update-authorization-soap)
- [BMUpdateButton API operation (NVP)](/api/nvp-soap/update-button-nvp)
- [BMUpdateButton API operation (SOAP)](/api/nvp-soap/update-button-soap)
- [UpdateComplianceStatus API operation](/api/nvp-soap/update-compliance-status)
- [UpdateInvoice API operation](/api/nvp-soap/update-invoice)
- [UpdateRecurringPaymentsProfile API operation (NVP)](/api/nvp-soap/update-recurring-payments-profile-nvp)
- [Advanced configurations](/sdk/js/advanced): Customize SDK behavior and settings.
- [Sandbox <iframe> integration](/sdk/js/iframe): Test integrations in a sandbox iframe.
- [Test and go live](/sdk/js/production): Validate and launch your integration.
- [Reference](/sdk/js/reference): JavaScript SDK v6 Reference
- [Set up JavaScript SDK v6](/sdk/js/set-up): Configure the SDK for your integration.
- [Reference](/sdk/react/reference): React SDK v6 reference
- [Agreement already canceled](/api/errors/agreement-already-cancelled)
- [Cannot pay self](/api/errors/cannot-pay-self)
- [Currency mismatch](/api/errors/currency-mismatch)
- [Currency not allowed](/api/errors/currency-not-allowed)
- [Duplicate transactions](/api/errors/duplicate-transactions)
- [Merchant not enabled for reference transaction](/api/errors/merchant-not-enabled-for-reference-transaction)
- [Not authorized](/api/errors/not-authorized)
- [Common errors overview](/api/errors/overview)
- [Resource not found](/api/errors/resource-not-found)
- [Unprocessable entity](/api/errors/unprocessable-entity)
- [Unsupported payee currency](/api/errors/unsupported-payee-currency)
- [Validation error](/api/errors/validation-error)
- [Dynamic client registration](/reference/guidelines/psd2-compliance/dynamic-client-registration)
- [Payment Services Directive 2 (PSD2) compliance](/reference/guidelines/psd2-compliance)
- [Strong customer authentication](/reference/guidelines/psd2-compliance/sca)
- [Implementing an IPN listener](/api/nvp-soap/ipn/IPNImplementation)
- [Introducing IPN](/api/nvp-soap/ipn/IPNIntro): Introduction to Instant Payment Notification (IPN), a message service that notifies you of events related to PayPal transactions
- [IPN operations/history](/api/nvp-soap/ipn/IPNOperations)
- [Payment Data Transfer (PDT) - An alternative to IPN](/api/nvp-soap/ipn/IPNPDTAnAlternativetoIPN)
- [Identifying your IPN listener to PayPal](/api/nvp-soap/ipn/IPNSetup)
- [IPN simulator](/api/nvp-soap/ipn/IPNSimulator)
- [IPN testing](/api/nvp-soap/ipn/IPNTesting)
- [IPN and PDT variables](/api/nvp-soap/ipn/IPNandPDTVariables)
- [How to process Instant Payment Notification (IPN) messages](/api/nvp-soap/ipn/ht-ipn)
- [Instant Payment Notification](/api/nvp-soap/ipn)
- [3D Secure with 3rd-party Merchant Plug-Ins](/api/nvp-soap/payflow/3d-secure-mpi)
- [3-D Secure for Payflow](/api/nvp-soap/payflow/3d-secure-overview)
- [Payflow buyer authentication integration guide](/api/nvp-soap/payflow/buyer-authentication)
- [Payflow fraud protection services user's guide](/api/nvp-soap/payflow/fraud-protection)
- [Payflow payment gateway: Getting started](/api/nvp-soap/payflow/gs-payflow)
- [PayPal Payments Advanced: Getting started with hosted pages](/api/nvp-soap/payflow/gs-ppa-hosted-pages)
- [Payflow Gateway and PayPal Payments Pro](/api/nvp-soap/payflow)
- [Payflow Gateway](/api/nvp-soap/payflow/payflow-gateway)
- [Payflow recurring billing service user's guide](/api/nvp-soap/payflow/recurring-billing)
- [SCA Exemptions](/api/nvp-soap/payflow/sca-exemptions)
- [Set up and test hosted pages with Payflow Gateway](/api/nvp-soap/payflow/test-hosted-pages)
- [Virtual Terminal](/api/nvp-soap/payflow/virtual-terminal)
- [Website Payments Pro Hosted Solution](/api/nvp-soap/payflow/website-payments-pro-hosted-solution)
- [Website Payments Pro](/api/nvp-soap/payflow/website-payments-pro)
- [PayPal Payments Pro](/api/nvp-soap/paypal-payments-pro)
- [10409](/api/nvp-soap/troubleshooting/10409)
- [10410](/api/nvp-soap/troubleshooting/10410)
- [10411](/api/nvp-soap/troubleshooting/10411)
- [10413](/api/nvp-soap/troubleshooting/10413)
- [10415](/api/nvp-soap/troubleshooting/10415)
- [10416](/api/nvp-soap/troubleshooting/10416)
- [10419](/api/nvp-soap/troubleshooting/10419)
- [10423](/api/nvp-soap/troubleshooting/10423)
- [10444](/api/nvp-soap/troubleshooting/10444)
- [10481](/api/nvp-soap/troubleshooting/10481)
- [10485](/api/nvp-soap/troubleshooting/10485)
- [10609](/api/nvp-soap/troubleshooting/10609)
- [10610](/api/nvp-soap/troubleshooting/10610)
- [10620](/api/nvp-soap/troubleshooting/10620)
- [10621](/api/nvp-soap/troubleshooting/10621)
- [10730](/api/nvp-soap/troubleshooting/10730)
- [10736](/api/nvp-soap/troubleshooting/10736)
- [11607](/api/nvp-soap/troubleshooting/11607)
- [11812](/api/nvp-soap/troubleshooting/11812)
- [Troubleshooting NVP/SOAP errors](/api/nvp-soap/troubleshooting)
- [HostedFields component](/sdk/js/v1/reference)
- [Best practices](/sdk/js/v5/best-practices)
- [JavaScript SDK v5 script configuration](/sdk/js/v5/configuration): Set up and configure the PayPal JavaScript SDK v5.
- [JavaScript SDK v5](/sdk/js/v5/overview)
- [JavaScript SDK performance optimization](/sdk/js/v5/performance)
- [Reference](/sdk/js/v5/reference): Reference document for PayPal's JavaScript SDK
- [Install and set up](/sdk/android/install-and-setup): Add the PayPal Mobile SDK v3.0.0 to your Android app, configure CoreConfig, and register your return links.
- [Overview](/sdk/android/overview): How the PayPal Mobile SDK v3.0.0 fits into your Android app, who's responsible for what, and where to go next.
- [Troubleshooting](/sdk/android/troubleshooting): Common problems integrating the PayPal Mobile SDK v3.0.0 on Android, organized by symptom.
- [In-app purchases flow for lower processing fee on iOS](/sdk/ios/in-app-purchases)
- [Install and set up](/sdk/ios/install-and-setup): Add the PayPal Mobile SDK v3.0.0 for iOS, initialize CoreConfig, and register your return links.
- [Overview](/sdk/ios/overview): How the PayPal Mobile SDK v3.0.0 fits into your iOS app, who's responsible for what, and where to go next.
- [Troubleshooting](/sdk/ios/troubleshooting): Common problems integrating the PayPal Mobile SDK v3.0.0 on iOS, organized by symptom.
- [Express Checkout with the Payflow Gateway](/api/nvp-soap/payflow/express-checkout)
- [Express Checkout with Payflow Gateway - other transactions](/api/nvp-soap/payflow/express-checkout/other)
- [Express Checkout with Payflow Gateway - basic integration](/api/nvp-soap/payflow/express-checkout/sale)
- [Express Checkout with Payflow Gateway - testing](/api/nvp-soap/payflow/express-checkout/testing)
- [Processors That Require additional transaction parameters](/api/nvp-soap/payflow/integration-guide/additional-parameters)
- [Card on file](/api/nvp-soap/payflow/integration-guide/card-on-file)
- [Payflow Gateway processing platforms for card-present transactions](/api/nvp-soap/payflow/integration-guide/card-present-transactions)
- [Configure hosted checkout pages](/api/nvp-soap/payflow/integration-guide/configure-hosted-checkout)
- [Payflow Gateway Checkout Solutions](/api/nvp-soap/payflow/integration-guide/gateway-checkout-solutions)
- [Payflow header parameters](/api/nvp-soap/payflow/integration-guide/header-parameters)
- [Payflow Gateway developer guide and reference](/api/nvp-soap/payflow/integration-guide)
- [Payflow Gateway - submit purchasing card Level 2 and 3 transactions](/api/nvp-soap/payflow/integration-guide/level-2-3-transactions)
- [Payflow Gateway Magtek parameters](/api/nvp-soap/payflow/integration-guide/magtek)
- [New features](/api/nvp-soap/payflow/integration-guide/new-features)
- [Payflow Gateway: Payflow Link migration](/api/nvp-soap/payflow/integration-guide/payflow-link-migration)
- [Manage your Payflow account](/api/nvp-soap/payflow/integration-guide/payflow-manager)
- [Payflow SDK](/api/nvp-soap/payflow/integration-guide/payflow-sdk)
- [Payflow services](/api/nvp-soap/payflow/integration-guide/payflow-services)
- [Payflow Gateway secure token](/api/nvp-soap/payflow/integration-guide/secure-token)
- [Payflow Gateway security and PCI compliance](/api/nvp-soap/payflow/integration-guide/security-pci-compliance)
- [Send a simple transaction to the server](/api/nvp-soap/payflow/integration-guide/simple-transaction)
- [Submit level 2, level 3, and additional information](/api/nvp-soap/payflow/integration-guide/submit-additional-info)
- [Submit credit card transactions](/api/nvp-soap/payflow/integration-guide/submit-transactions)
- [Payflow Gateway supported payment types and languages](/api/nvp-soap/payflow/integration-guide/supported-payment-types-and-languages)
- [Payflow Gateway - Telecheck Electronic check processing](/api/nvp-soap/payflow/integration-guide/telecheck)
- [Test transactions](/api/nvp-soap/payflow/integration-guide/test-transactions): Guide for testing payflow integration through a simulated payment network
- [Payflow Gateway tokenization](/api/nvp-soap/payflow/integration-guide/tokenization)
- [Transaction responses](/api/nvp-soap/payflow/integration-guide/transaction-responses)
- [Get to know Payflow Pro](/api/nvp-soap/payflow/payflow-pro/get-to-know-payflow-pro)
- [PayPal Payflow Pro API credentials and endpoints](/api/nvp-soap/payflow/payflow-pro/payflow-pro-credentials)
- [Choose your integration path](/api/nvp-soap/payflow/payflow-pro/payflow-pro-integration-paths)
- [PayPal Payflow Pro integration guide](/api/nvp-soap/payflow/payflow-pro/payflow-pro-integration)
- [Test Payflow transactions](/api/nvp-soap/payflow/payflow-pro/payflow-pro-testing)
- [Choose transaction type](/api/nvp-soap/payflow/payflow-pro/payflow-pro-transaction-type)
- [Access SFTP reports](/api/nvp-soap/payflow/reports/access-sftp-reports)
- [Payflow reports](/api/nvp-soap/payflow/reports)
- [Report parameters](/api/nvp-soap/payflow/reports/report-parameters)
- [Samples](/api/nvp-soap/payflow/reports/samples)
- [Search parameters](/api/nvp-soap/payflow/reports/search-parameters)
- [Use the Reporting API](/api/nvp-soap/payflow/reports/use-the-api)
- [XML schema](/api/nvp-soap/payflow/reports/xml-schema)
- [Website Payments Pro authorization and capture](/api/nvp-soap/paypal-payments-pro/integration-guide/authorizations)
- [Getting started with Direct Payment API](/api/nvp-soap/paypal-payments-pro/integration-guide/direct-payment)
- [Website Payments Pro and Express Checkout](/api/nvp-soap/paypal-payments-pro/integration-guide/express-checkout)
- [Website Payments Pro integration guide](/api/nvp-soap/paypal-payments-pro/integration-guide)
- [Website Payments Pro recurring payments](/api/nvp-soap/paypal-payments-pro/integration-guide/recurring-payments)
- [Website Payments Pro reference transactions](/api/nvp-soap/paypal-payments-pro/integration-guide/reference-transactions)
- [SCA payment indicators for Website Payments Pro](/api/nvp-soap/paypal-payments-pro/integration-guide/sca-payment-indicators-pro)
- [Website Payments Pro security features](/api/nvp-soap/paypal-payments-pro/integration-guide/security-features)
- [Website Payments Pro card verifications](/api/nvp-soap/paypal-payments-pro/integration-guide/verifications)
- [Update Android SDK from v1 to v2](/sdk/android/update-android-v2): Update your Android integration from PayPal Mobile SDK v1 to v2. Move to sealed result callbacks, manual 3D Secure handling, and remove PayPal Native Payments.
- [Update Android SDK from v2 to v3](/sdk/android/update-android): Update your PayPal Mobile SDK v2 Android integration to v3.0.0.
- [Accept a card payment](/sdk/android/add-payment-methods/card): Accept an Advanced Credit and Debit Card (ACDC) payment in your Android app with PayPal Mobile SDK v3.0.0, including vault.
- [Add and customize PayPal, Pay Later, and PayPal Credit buttons](/sdk/android/add-payment-methods/payment-buttons): Add and customize the PayPal, Pay Later, and PayPal Credit buttons in your Android app.
- [Accept a PayPal payment](/sdk/android/add-payment-methods/paypal-checkout): Accept a PayPal payment in your Android app with PayPal Mobile SDK v3.0.0, including one-time checkout, save with purchase, and Pay Later and PayPal Credit.
- [Update iOS SDK from v1 to v2](/sdk/ios/update-ios-v2): Update your iOS integration from PayPal Mobile SDK v1 to v2. Move from delegate callbacks to completion handlers and async/await. Adopt the unified CoreSDKError type. Handle cancellations as errors.
- [Update iOS SDK from v2 to v3](/sdk/ios/update-ios): Update your PayPal Mobile SDK v2 iOS integration to v3.0.0.
- [Accept a card payment](/sdk/ios/add-payment-methods/card): Accept Advanced Credit and Debit Card (ACDC) payments on iOS, including saving payment methods, with PayPal Mobile SDK v3.0.0.
- [Add and customize PayPal, Pay Later, and PayPal Credit buttons](/sdk/ios/add-payment-methods/payment-buttons): Add and customize the PayPal-branded button family for iOS with PayPal Mobile SDK v3.0.0.
- [Accept a PayPal payment](/sdk/ios/add-payment-methods/paypal-checkout): Accept a PayPal payment in your iOS app with PayPal Mobile SDK v3.0.0, including one-time checkout, save with purchase, and Pay Later and PayPal Credit.
- [Payflow Gateway - additional processor information](/api/nvp-soap/payflow/integration-guide/reference/additional-processor-info)
- [Carding module email](/api/nvp-soap/payflow/integration-guide/reference/carding-module-email)
- [Payflow Gateway country codes](/api/nvp-soap/payflow/integration-guide/reference/country-codes)
- [Payflow Gateway FAQs](/api/nvp-soap/payflow/integration-guide/reference/faq)
- [Payflow Gateway country codes used by FDMS South only](/api/nvp-soap/payflow/integration-guide/reference/fdms-south-only)
- [Payflow Gateway reference](/api/nvp-soap/payflow/integration-guide/reference)
- [Revision history](/api/nvp-soap/payflow/integration-guide/reference/revision-history)
- [Payflow Gateway Units of Measurement](/api/nvp-soap/payflow/integration-guide/reference/units-of-measurement)
- [Payflow Gateway verbosity parameter for processor-specific transaction results](/api/nvp-soap/payflow/integration-guide/reference/verbosity)