2420336 - No service found for namespace /UI2/, name <SERVICE_NAME>

Getting a blank page after logon to SAP Fiori Launchpad.

OR/AND

In the server's error logs or in the browser console log there are one or more of the following errors:

• No service found for namespace /UI2/, name INTEROP
• No service found for namespace /UI2/, name TRANSPORT
• No service found for namespace /UI2/, name LAUNCHPAD
• No service found for namespace /UI2/, name PAGE_BUILDER_PERS
• No service found for namespace /UI2/, name PAGE_BUILDER_CONF
• No service found for namespace /UI2/, name PAGE_BUILDER_CUST

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

• SAP NetWeaver
• SAP ERP
• SAP S/4HANA

no service found for namespace ui2 page_builder_pers page_builder_conf page_builder_cust backend back end interop launchpad transport http status 403, blank page, blankpage, fiori launchpad not loading , KBA , CA-FLP-ABA , SAP Fiori Launchpad ABAP Services , CA-FLP-FE-UI , SAP Fiori Launchpad User Interface , Problem