when calling a dynpro or web dynpro application from the FIORI launchpad of our CAL instance (SAP S/4HANA FPS02 - Fully Activated) I get an error message stating the IP address could not be found (see screenshot).
The host file is mapped correctly, but I think that should not be the root cause anyway since I see the same behavior in the Windows Remote Desktop (screenshot is from RDP).
UI5 apps seem to work fine. E.g. I can display a sales order in the UI5 app but when I switch to the related VA03 app I get the same error message as below.
This is somewhat similar to 1809 CAL instances where a certificate had to be installed to enable the dynpro and web dynpro applications, but
The only "not-standard" feature of this instance which I am aware of is a BTP connection with cloud connector.
Do you have any idea what I need to check/change?
Hi Philipp, Amo,
as discussed with Philipp, this issue was caused by a changed RFC destination (tCode SM59 --> http to ABAP --> LOCAL_HTTPS) where the entry was deleted in this specific system (ie. a deliberate configuration change). After re-applying the original entry vhcals4hcs.dummy.nodomain, the app is reachable again.
As technical background: Fiori apps that are based on WebGUI, Web Dynpro, etc. will need correct entries in the respective RFC destinations.