Hi, I recently received the "Action Required: Certificate Authority change to Sectigo" email.
I have followed the instructions to test my web app in the sandbox, however I receive an authentication error saying my APPNAME is invalid.
According to a KB article linked to from the email, if there is a problem then I should receive the following error
"The PKIX path validation failed exception"
Does anyone know if the authentication error indicates at least success regarding the certificate change?