Finding and your answer
Ledger.CostCentre column
Not found in this gold boundary
99%
How the model read it
The authoritative register requires Ledger.CostCentre for operating-area accountability, and working sheets illustrate cost-centre codes. The audited Ledger inventory contains only DateKey, AccountKey, SignedAmount and IsAdjustment; no CostCentre object is present in available current gold.
Workbook evidence
Cited current gold
Open questions
Is CostCentre available in the finance posting source at the same posting grain as Ledger?
Is a separate Cost Centre dimension required, or is a code column on Ledger sufficient?
Who owns the authoritative cost-centre hierarchy and effective-dating rules?