It depends a lot on the company’s strategy:
- What is the main challenge right now?
- Why it appeared?
- How company is going to overcome it?
- What do competitors do about this?
Answering these questions will help to formulate a strategy. KPIs just support the strategy.
For example: you found out that the biggest problem is with refund/charge-back rate.
Your action plan might consist of investing more time in respective checks. The KPI will be aligned with this action plan and this objective.
Here are some ready-to-use KPIs for credit card processing company. Needless to say you might need to modify them according to the needs of your business.