A steady shift in the value added from building information modelling (BIM) to architectural, engineering and construction (AEC) activities to those of facilities management (FM) is seeing increasing emphasis on whole-of-life thinking and associated information requirements management practices. Little is known about the process of identifying, documenting, generating and harmonizing BIM data inputs with FM data outputs in the Australian construction industry. Grounded on empirical evidence from a case study that transverses client and project team perspectives, this exploratory paper identifies missing links in the AEC and FM interface. The study describes the issues surrounding the collection and harmonization of BIM data inputs (as-built deliverables at handover) and the identification of (and connection to) FM data outputs. With the limitation of an exploratory and interpretive case study, the intention is to provide a contribution to academics and practitioners with grounded, stakeholder-related insights.