2801824 - Frequent issues and important configuration for Fiori app

The KBA is applicable for all Fiori Apps in all product area.

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

• App cannot be opened or Navigation between apps does not work
• Error 'Could not open app. Please try again.'
• Navigation to this application is not supported
  
• Tile is not loading
• Error 'Cannot load Tile'
  
  
  
• Error captured in browser, front-end or back-end system
• Failed to load UI5 component for navigation intent \"#<Semantic Object>-<Action>\"
  
  
  
• Failed to resolve navigation target "#<Semantic Object>-<Action>"
  
  
  
• Failed to load from ICF node, such as /sap/bc/ui5_ui5/sap/featuretoggles1
  
  
  
• No System Alias found for Service '<service name>' and user '<current user>'
• No service found for namespace '', name 'C_SALESANALYTICSQRY_1_CDS', version '0001'

• SAP S/4HANA, on-premise edition 1511
• SAP S/4HANA 1610 
• SAP S/4HANA 1709
• SAP S/4HANA 1809
• SAP S/4HANA 1909

FLP, error_log, GW_CLIENT, FLPD_CUST, FLP_INTENTCHECK, FLIA, APP_INDEX_CALCULATE, FLC, APPDESC_GET_ALL, UI5, cannot open app , KBA , SD-FIO , Fiori User Interface , CA-FLP-ABA , SAP Fiori Launchpad ABAP Services , OPU-GW-COR , Framework , FI-FIO , Fiori UI for Financial Accounting , MM-FIO , Fiori UI for Materials Management , LE-SHP-FIO , Fiori Apps - Delivery Documents , PP-FIO , Fiori UI for Production Planning and Control , Problem