Unable to verify Paypal Pro credentials

When I enter the API credentials for the PayPal pro field, it fails to verify it with the message  'unable to verify'. The information is direct from PayPal. I have a PayPal Pro subscription. Please advise.

I see that your Payment form in the account is configured with Stripe payment. Did you change the payment field from PayPal Pro to Stripe? Are you still experiencing the issue and want to use the PayPal Pro with the same form?

If you are referring to a different form, please let us know the form ID/URL so that we can assist you further.

Thank you!