# Tutorials and Guides
source: https://developer.mastercard.com/payment-acceptance-api/documentation/tutorials-and-guides/index.md

Use this page to find the guides and step-by-step tutorials for testing the Payment Acceptance OAuth 1.0a service.

## Guides {#guides}

#### Quick start guide {#quick-start-guide}

Set up your project, generate credentials, and make your first Sandbox request.

[Read the Quick Start Guide](https://developer.mastercard.com/payment-acceptance-api/documentation/quick-start-guide/index.md)

#### [Data Explanations](https://developer.mastercard.com/payment-acceptance-api/documentation/tutorials-and-guides/data-explanation/index.md) {#data-explanationsdocumentationtutorials-and-guidesdata-explanation}

Review the core data elements used across the Payment Acceptance API.

#### [Onboarding Checklist](https://developer.mastercard.com/payment-acceptance-api/documentation/tutorials-and-guides/onboarding-checklist/index.md) {#onboarding-checklistdocumentationtutorials-and-guidesonboarding-checklist}

Understand the steps required to request and prepare for Production access.

## Payment Acceptance Tutorials {#payment-acceptance-tutorials}

#### [Commercial Card Payment Acceptance](https://developer.mastercard.com/payment-acceptance-api/documentation/tutorials-and-guides/card-pay-acceptance-tutorial/index.md) {#commercial-card-payment-acceptancedocumentationtutorials-and-guidescard-pay-acceptance-tutorial}

This tutorial explains the complete flow for accepting and updating Mastercard commercial card payments.

#### [Payment Cancellation](https://developer.mastercard.com/payment-acceptance-api/documentation/tutorials-and-guides/payment-cancellation-tutorial/index.md) {#payment-cancellationdocumentationtutorials-and-guidespayment-cancellation-tutorial}

This tutorial walks you through the end‑to‑end process of cancelling a payment in Commercial Direct Payments (CDP).

#### [Creditor Pre‑Registration and Activation](https://developer.mastercard.com/payment-acceptance-api/documentation/tutorials-and-guides/creditor-preregistration-tutorial/index.md) {#creditor-preregistration-and-activationdocumentationtutorials-and-guidescreditor-preregistration-tutorial}

This tutorial walks you through the creditor pre-registration and activation process in CDP, from creating an inactive creditor profile to activating the profile and receiving activation notifications.