Solution : https://service.sap.com/sap/support/notes/664102 (SAP Service marketplace login required)
Key words :
function code fcode='checkin', badi document_storage01->before_list_storagecat, badi cdesk_badi_main->on_function, event time='pre', attached correction instructions, storing files, system displays, dialog box, storage category, dms profile
Related Notes :
| 627580 | CDESK: FAQs for the CAD desktop 2.x |
| 600142 | CDESK: List of all BAdIs/BAdI methods in CAD desktop |