Applicable issues
For scenarios where ad platform conversions, on-site visits, UTM, CRM leads, and order revenue cannot be reconciled with each other.

FIELD GUIDE / ATTRIBUTION
Ad platforms, analytics tools, and order systems answer different questions. Keeping their respective time windows, identity, and event definitions intact is the only way to know why the numbers differ.
Reconciliation is not about forcing all numbers to match, but making differences explainable and verifiable.
For scenarios where ad platform conversions, on-site visits, UTM, CRM leads, and order revenue cannot be reconciled with each other.
Platform attribution window and timezone, UTM rules, on-site session identifiers, order numbers, refund status, currency, and export time.
Fix the time range, and trace back from orders to touchpoints, platform conversions, and on-site sources; list cases without UTM, cross-device, delayed callbacks, refunds, and duplicate reports separately.
Treat platform self-reported conversions as the only truth; mix click date and order date; ignore differences in timezone, currency, refunds, and attribution windows.
Use the ad platform's current attribution settings and exports, on-site visit records, order and refund records, and the team's written metric definitions as the source of truth.
2026-09-03. Must re-verify after platform field and attribution rule changes; historical definitions cannot be applied automatically.
The same data set can retain multiple perspectives, but each conclusion must state which one it uses.
Can use platform attribution to observe relative changes within channels, while retaining window and model limitations.
Based on orders, refunds, taxes, and recognized revenue; do not derive legal financial conclusions from ad platform numbers.
Trace source chains and event times at the order level, and record missing, conflicting, and undetermined parts.

Explain the platform, time range, order system, and differences; first check the methodology; no need to submit accounts or customer details.