1. Research and compare online payment services to identify reliable providers.
2. Configure the online payment service methods into your website or app.
3. Verify the online payment service provider is licensed in your state.
4. Ensure you have strong security protocols and encryption in place for online transactions.
5. Secure payment processing by using PCI compliant solutions.
6. Monitor all payment systems and implement an alert system for unauthorized activity.
7. Make sure customer data is securely stored and coded to comply with GDPR and other applicable regulations.