3770162 - New SAP Fiori applications cannot be deployed from SAP Business Application Studio to the SAP S/4HANA system with error 500

• Deployment errors in Business Application Studio: deploy-to-abap fails with HTTP 500 ("Request failed with status code 500"), and debug logs shows:
  debug abap-deploy-task xxx Retrieving application xxx from /sap/opu/odata/UI5/ABAP_REPOSITORY_SRV, AxiosError: Request failed with status code 500
• /n/IWFND/ERROR_LOG shows error:
  "System alias for service 'ZABAP_REPOSITORY_SRV' and user '<user>' could not be found."
  
  
  

• Product Independent Assignment (Fallback)
• Business Application Studio (BAS)
• SAPUI5 ABAP Repository (deploy-to-abap)
• SAP Gateway OData service: ABAP_REPOSITORY_SRV

business application studio, bas, deploy-to-abap, sapui5 abap repository, abap_repository_srv, http 500, 500 internal server error, system alias, /iwfnd/maint_service, odata, sap gateway, /iwfnd/error_log, sicf, ui5 deployment, bsp repository , KBA , CA-UI5-ABA-SAR , UI5 App Infrastructure: SAPUI5 ABAP Repository , Problem