• Zones: For better performance, user interface zones should be initially collapsed when not required for 90% or more of business processes. The initial state of zones (collapsed or not) can be controlled via the Portal Preferences tab on the User portal.

• Number of Records: The number of records returned to the user interface for a zone should be limited to 50 rows when building custom zones against large transactional tables.

• Troubleshooting Screens: To troubleshoot a screen in the user interface, click Preferences in the top right corner of the application and choose the Portal Preferences tab. Choose the appropriate portal and set all zones to "Initially Collapsed". Navigate back to the screen that has performance issues, expand the zones one by one, and measure the execution time of each zone. This should be an accurate step-by-step representation of the full screen execution.

• Performance Optimization: For optimal user interface performance, laptop users should ensure their computer is in high performance mode.

• Performance Tests: Performance tests should be performed on all configurations to ensure daily processing windows are adequate. This includes configurations for: aggregations processes and settlement calculations.

• Solution Changes: Oracle should be consulted before significant solution changes are made. For example, adding new meter channels, adding a large number of meters, network changes, or new integrations, etc.