Solution : https://service.sap.com/sap/support/notes/1448178 (SAP Service marketplace login required)
Key words :
/saphelp_ppm450sp04/helpdata/de/43/054880bbe822f5e10000000a1553f7/frameset, transfer works correctly, document structure, cprojects/cfolders, system issues, error message, operation failed, http error 405, terminates copying, document temporarily
Related Notes :
| 1429160 | FAQ: cProjects and access to WebDAV |
| 811370 | cProjects 4.x/5.0 FAQ: Composite SAP Note & consulting notes |