You don't need to validate the PayPal API settings, but make sure the settings are correct in your PayPal account, according to the instructions we provide in the screenshots (BILLING > SETTINGS > Recurring Billing > PayPal API Credentials). The validation step is only required for the section "Authorize.net / PracticePay CIM".
Can we validate the Paypal API credentials? I got a "validation failed" error when I clicked it.Follow
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