Symptom
Error "App could not be opened because the SAP UI5 component of the application could not be loaded." when opening a custom app.
From the browser console, error "403 Forbidden The request has been blocked by UCON." displays.
Sample error message:
App could not be opened because the SAP UI5 component of the application could not be loaded.
Environment
SAP S/4HANA Cloud
Cause
It might caused by uncompleted transport of the related custom catalog extensions and business catalogs.
Resolution
1. Check the related software collection, status like "Imported Successfully, Postprocessing Failed" can be found.
2. Check via T-code ATO_CLOUD_SUPPORT, errors like below can be found.
3.1. In test system, do the dummy changes to the business roles which were shown in the error messages.
3.2. Involve them into the software collection.
3.3. Export it from Test system.
3.4. Import the new version of the software collection.
4. After the import completes successfully, check the custom app again.
Keywords
App could not be opened because the SAP UI5 component of the application could not be loaded, custom app, could not open, UI5, Cloud , KBA , BC-SRV-APS-IAM , Identity and Access Management , Problem