I'm setting up the SSO in Pega 8 upgraded environment. All the SSO activity steps are executing properly, but I'm facing an error com.pega.pegarules.pub.PRRuntimeException: No failure response set by custom authentication activity. But the same is working fine in Pega 7.

Tried to login with url http://<ldapserver:port>/pega/<pegaserver:port>/prweb/sso?pyuseridentifier=[user]&token=[token] Token generation, validation, retrieval of AD groups, mapping of accessgroup based on the AD group is all working fine. After that facing com.pega.pegarules.pub.PRRuntimeException: No failure response set by custom authentication activity

corrected all the errors occurring in the pega SSO activity, but still facing this issue. Tried with different url formats in the article https://community.pega.com/knowledgebase/articles/security/84/application-url-patterns-various-authentication-service-types but no luck.

Error occurring in logs as below after all successful execution of the SSO Activity.

2021-09-22 14:19:56,497 [ttp-nio-8080-exec-24] [ STANDARD] [ ] [HCCSecurity:01.01.02] (ngineinterface.service.HttpAPI) ERROR ukdocdwpegap001| Proprietary information hidden - Proprietary information hidden: com.pega.pegarules.pub.PRRuntimeException com.pega.pegarules.pub.PRRuntimeException: No failure response set by custom authentication activity at com.pega.pegarules.session.internal.mgmt.authentication.SchemePRCustom.onAuthenticationFailure(SchemePRCustom.java:1019) ~[prprivate-session.jar:?] at com.pega.pegarules.session.internal.mgmt.authentication.Authentication.doAuthentication(Authentication.java:739) ~[prprivate-session.jar:?] at com.pega.pegarules.session.internal.engineinterface.service.HTTPAuthenticationHandler.performAuthentication(HTTPAuthenticationHandler.java:257) ~[prprivate-session.jar:?] at com.pega.pegarules.session.internal.engineinterface.service.HTTPAuthenticationHandler.doHttpReqAuthentication(HTTPAuthenticationHandler.java:100) ~[prprivate-session.jar:?] at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.handleAuthentication(HttpAPI.java:3038) ~[prprivate-session.jar:?] at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.activityExecutionProlog(EngineAPI.java:617) ~[prenginext.jar:?] at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequestInner(EngineAPI.java:443) ~[prenginext.jar:?] at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source) ~[?:?] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_291] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_291] at com.pega.pegarules.session.internal.PRSessionProviderImpl.performTargetActionWithLock(PRSessionProviderImpl.java:1399) ~[prprivate-session.jar:?] at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1131) ~[prprivate-session.jar:?] at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:985) ~[prprivate-session.jar:?] at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequest(EngineAPI.java:368) ~[prenginext.jar:?] at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.invoke(HttpAPI.java:936) ~[prprivate-session.jar:?] at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._invokeEngine_privact(EngineImpl.java:338) ~[prprivate-session.jar:?] at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:282) ~[prprivate-session.jar:?] at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:259) ~[prprivate-session.jar:?] at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngineInner(JNDIEnvironment.java:281) ~[prpublic.jar:?] at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngine(JNDIEnvironment.java:226) ~[prpublic.jar:?] at com.pega.pegarules.web.impl.WebStandardImpl.makeEtierRequest(WebStandardImpl.java:779) ~[prwebj2ee.jar:?] at com.pega.pegarules.web.impl.WebStandardImpl.doPost(WebStandardImpl.java:428) ~[prwebj2ee.jar:?] at sun.reflect.GeneratedMethodAccessor118.invoke(Unknown Source) ~[?:?] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_291] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_291] at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:388) ~[prbootstrap-8.5.3-551.jar:8.5.3-551] at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:430) ~[prbootstrap-8.5.3-551.jar:8.5.3-551] at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingThrowable(AppServerBridgeToPega.java:225) ~[prbootstrap-api-8.5.3-551.jar:8.5.3-551] at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethod(AppServerBridgeToPega.java:274) ~[prbootstrap-api-8.5.3-551.jar:8.5.3-551] at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doPost(WebStandardBoot.java:146) ~[prbootstrap-api-8.5.3-551.jar:8.5.3-551] at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doGet(WebStandardBoot.java:107) ~[prbootstrap-api-8.5.3-551.jar:8.5.3-551] at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) ~[servlet-api.jar:4.0.FR] at com.pega.pegarules.internal.web.servlet.WebStandardBoot.service(WebStandardBoot.java:172) ~[prbootstrap-api-8.5.3-551.jar:8.5.3-551] at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[servlet-api.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[catalina.jar:9.0.46] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[catalina.jar:9.0.46] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-websocket.jar:9.0.46] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[catalina.jar:9.0.46] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[catalina.jar:9.0.46] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[catalina.jar:9.0.46] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[catalina.jar:9.0.46] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[catalina.jar:9.0.46] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[catalina.jar:9.0.46] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[catalina.jar:9.0.46] at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687) ~[catalina.jar:9.0.46] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[catalina.jar:9.0.46] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[catalina.jar:9.0.46] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) ~[tomcat-coyote.jar:9.0.46] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-coyote.jar:9.0.46] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-coyote.jar:9.0.46] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707) ~[tomcat-coyote.jar:9.0.46] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-coyote.jar:9.0.46] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_291] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_291] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-util.jar:9.0.46] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_291]