The automatic delivery of a billing account’s cost data (standard or detailed) and pricing data to a BigQuery dataset, where it can be queried with SQL or connected to BI tools.
On the ACE it is the answer when Finance wants to analyze costs by project, service, SKU, or label. Resource labels show up in the export and let you group costs.
Cloud Billing export to BigQuery is a concept that can show up on the exam. Check the full guide to see it in context.