Selected metric
Email inflow
Metric purpose
Shows the volume of new email demand entering a service queue during the reporting period.
Business definition
Count of unique eligible email work items first received or created in the reporting window.
Formula
Eligible new email work items received in period
Numerator
Unique eligible email records with first received date in period
Denominator
Not applicable
Source system
Synthetic service queue extract
Reporting owner
Reporting Assurance Lead
Reporting cadence
Weekly operational pack and monthly executive pack
Governance Checklist
- Defined owner
- Documented methodology
- Validation checks
- Reconciliation process
- Exception handling
- Escalation path
- Review cadence
- Source of truth
Result
Add exception threshold and owner sign-off for weeks where exclusion rates exceed tolerance.
Executive interpretation
A sustained increase in inflow indicates demand pressure, but should be interpreted with staffing, channel mix, and backlog movement.
Validation Checks
- Compare total inflow to source queue creation counts
- Check duplicate and exclusion rates by week
- Review late-arriving records and timestamp changes
Common Failure Modes
- Counting reopened items as new demand
- Mixing received date and created date
- Missing queue transfer logic
Exclusions and Escalation
Exclusions
- Duplicate records
- System-generated notifications
- Test or training records
- Records outside the agreed reporting window
Escalation pathway
Reporting owner reviews exceptions with queue owner, then escalates definition changes to the KPI governance forum.