Drill Down a Busy Analytical Metric

How it behaves

Use this only after an analytical row returns drilldown.status as available and a drilldown_token. Pass the token unchanged to retrieve the exact invoice or product-line evidence allowed by that row, with pagination. The token already contains the authenticated company, financial year, bucket dates, and supported register mapping, so do not ask the user to reconstruct those fields. Do not use an unavailable, expired, copied-from-another-account, or manually edited token. This tool re-queries the current scoped Busy source through existing register services; check sourceSyncChanged before claiming byte-for-byte snapshot reproduction.