2093527 - Error "Obligatory transport target for business system XXX not found" - explained

You're transporting Integration Directory objects from one system to another.
During the import, the following error occurs:

"Obligatory transport target for business system XXX not found in System Landscape Directory"

• PI Release Independent
• SAP NetWeaver
• SAP Process Integration

STMS, CMS, CTS+, File System Transports,  SLD, Process Integration 7.0, PI 7.0, PI 7.01, PI 7.02, Process Integration 7.10, PI 7.10, Process Integration 7.11, PI 7.11, Process Integration 7.30, PI 7.30, Process Integration 7.31, PI 7.31, Process Orchestration 7.4, PI 7.4, PO 7.4, Process Orchestration 7.5, PI 7.5, PO 7.5, NetWeaver, XI, Obligatory transport target for business system, not found in System Landscape Directory , KBA , BC-XI-IBF-VNT , Versioning & Transport , BC-XI-IBC , Integration Builder - Configuration , Problem