# Prerequisites

## Get started with PAYONE

### Documentation

[Get Started with PAYONE](https://www.bspayone.com/DE/de/services/integrations)

[PAYONE General Information](https://docs.payone.com/pcp/payone-commerce-platform)

## Follow PAYONE's Ratepay documentation

[PAYONE - Special remarks Ratepay](https://docs.payone.com/payment-methods/ratepay)

It contains information about:

- Which parameters you have to use in which format
- How to provide the shopper information?
- Information about the fields required for the different payment methods
- Order modifications covering: `capture`, `complete cancellation` & `partial cancellation` and `refund`
- Response fields for every operation
- Sequence diagrams