protected String determineConsentEvent(final RequestContext requestContext) throws Throwable {
        val webService = WebUtils.getService(requestContext);
        val service = this.authenticationRequestServiceSelectionStrategies.resolveService(webService);
        if (service == null) {
            return null;
        }

        val registeredService = getRegisteredServiceForConsent(requestContext, service);
        val authentication = WebUtils.getAuthentication(requestContext);
        if (authentication == null) {
            return null;
        }

        return isConsentRequired(service, registeredService, authentication, requestContext);
    }
Indicates that webflow should proceed with consent.
support/cas-server-support-consent-webflow/src/main/java/org/apereo/cas/web/flow/CheckConsentRequiredAction.java