SumUp Sandbox Testing Guide

Use this skill for test setup, scenario design, and verification of SumUp integrations.

Test Environment Setup

1. Use a sandbox merchant account only.
2. Confirm credentials map to sandbox environment.
3. Prepare webhook endpoint in a non-production environment.
4. Enable logging for checkout id, reference, status, and error code.

Core Card Test Data

Default values unless docs specify otherwise:

• CVV: any 3 digits (for example 123)
• Expiry: any future date (for example 12/30)
• Cardholder: any name