The GoToWebinar service in Admin > Launchpoint shows a Failed API Error - API Error: ERROR -> HTTP Code = '403'
This error occurs due to an issue with the credentials Marketo uses to access the GoToWebinar service. To fix this, you would need to re-login to the GoToWebinar service under Admin > Launchpoint. Once this is done, the error should be resolved. You should also check the program membership for the webinar programs in Marketo, since any leads who attempted to register for a webinar while the error was in effect will have a status of "Registration Error" and will need to have their status corrected to "Registered."