Table of Contents Table of Contents Title and Copyright Information Preface Purpose Audience Documentation Accessibility Diversity and Inclusion Conventions 1 Troubleshooting Technical Flows 1.1 Where is the Problem 1.2 Preliminary Checks from UI 1.3 Preliminary Checks from Service Log Files 1.4 Login to Zipkin 1.5 Troubleshooting Logs using ELK Stack 1.5.1 Set Up ELK 1.5.2 Access Kibana 1.6 Check if Kafka is Running 1.7 Troubleshooting Environmental Issues 1.7.1 Possible Issues While Deploying Services 1.7.2 Possible Issues While Logging in and Launching Screen 2 Health Checks 2.1 WebLogic 2.2 Configure Data Sources in WebLogic 3 Troubleshooting Application Workflows 3.1 First level issues 3.2 Transaction data verification 3.3 Party Module Integration Troubleshooting 3.4 FLEXCUBE Host Integration Troubleshooting 4 Business Error Codes Index