The application name and instance ID are typically passed in via parameters after the #. In some instances, the URL after the # may be truncated and thus another way of passing in the application name and instance is needed.
For Data Model-based apps
Use URL parameters: formName and instance (optional)
e.g.:
http://[SERVER_ADDRESS]/sap/bc/ui5_ui5/iqx/fab2/index_latest.html?sap-ui-appcache=false&formName=[APPNAME]
http://[SERVER_ADDRESS]/sap/bc/ui5_ui5/iqx/fab2/index_latest.html?sap-ui-appcache=false&formName=[APPNAME]&instance=[INSTANCE_ID]
For Legacy apps
Use URL parameters: formId and instance (optional)
e.g.:
http://[SERVER_ADDRESS]/sap/bc/ui5_ui5/iqx/fab2/index_latest.html?sap-ui-appcache=false&formId=[APPNAME]
http://[SERVER_ADDRESS]/sap/bc/ui5_ui5/iqx/fab2/index_latest.html?sap-ui-appcache=false&formId=[APPNAME]&instance=[INSTANCE_ID]