Solution : https://service.sap.com/sap/support/notes/411402 (SAP Service marketplace login required)
Key words :
general/r3server/abap/note, install regular support packages, customer exit project, customer-defined segments, regular support packages, terms syntax error, dart customer exits, correct transport listed, symptom dart repairs, include dart repairs
Related Notes :
198259 | Upgrading DART in releases 3.0D - 4.5B, 4.6B, 4.6C |
99914 | DART - Data Retention Tool |