This usually means a refusal to supply a document or a piece of information on demand.

ECONOMIST: Jacob Soderman, wrist-tapper general

The story starts back in January 1998, when Royal Ordinance, now part of BAe Systems, applied for an export licence to refurbish the 30 Moroccan guns in Western Sahara and also, according to a confidential document we have seen, supply six new guns.

BBC: News Online

Manufacturers with complex supply chains are advised to start the diligence process early and to document all diligent efforts.

FORBES: SEC Approves Detailed Disclosure On 'Conflict Minerals'