Security in zoho crm when using credit card info

Hi!

In order to make online payments through zoho crm, I created a new kiosk with some input fields (card number, exp date, cvv ecc).

Then, the information is sent (through an envokeURL function I created using API) to an external service that manages the payment (the service is PCI DSS secured).

Is this process secure enough, giving that the info we write in the kiosk field is not being stored?

thanks!