28 Jul 2026 · GA4 · high severity · fix verified 9 Sept 2026
Currency field required when uploading cost data
'Currency field now required when uploading cost data in campaign imports.' An upload carrying cost without a currency now fails instead of loading silently.
What it breaks
Scheduled cost uploads built before July 2026 fail; dashboards that read imported cost go blank from the failure date.
Who it hits: Every property with a scheduled campaign data import.
The fix
Add the currency column (ISO 4217 code) to every cost row; re-run the failed uploads.
fix artifact · #A-003
Campaign data import CSV template
The exact columns a GA4 campaign data import (formerly cost data import) joins on today: source, medium, ISO date — with currency on every cost row since 28 July 2026.
- verified_on
- 2026-09-09
- next re-check
- 2026-12-01
- status
- current
Sources linked on every entry · artifacts stamped and re-verified · ← all changes