What is the recommended approach for having a cashout feature?

We can optionally send raw probabilities in the Odds Feed within the odds change messages, alongside every market outcome. Based on this, you can then do your own cashout calculations. If a ticket is cashed out, you should send the information about it through the OTS (Risk Management) system. In the feed we provide the information for you to be able to calculate cashout; however, we do not offer a cashout engine/API – each bookmaker has their own logic for cashout calculations.