2896192 - Error "User is not authorized to log on to the remote system" in HALM despite of having the required roles

• You want to transport delivery units between systems.
• You are logged on to the HANA Application Lifecycle Manager (HALM) in the target system.
• You are trying to register the source system as per Register a System for a Transport Route. 
• Your user in the source system has role sap.hana.xs.lm.roles::Transport granted.
• Your user in the target system has roles sap.hana.xs.lm.roles::Administrator, sap.hana.xs.admin.roles::HTTPDestAdministrator, and sap.hana.xs.admin.roles::RuntimeConfAdministrator granted.
• Despite of that, after completing the configuration, the newly registered system shows red status and message "User is not authorized to log on to the remote system <SID>".

• SAP HANA 1.0 SPS12
• SAP HANA 2.0 

HANA Application Lifecycle Manager, HALM, transport, source system, target system, HTTP destination , KBA , HAN-LM-APP , SAP HANA Application Lifecycle Management , Problem