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Development · Lesson

Metrics and field value duration

Quick answer

Measure how long records spend in each state without writing custom tables.

Key takeaways

  • Metrics record duration per field value automatically
  • Metric instances are the source for state duration reporting
  • Reassignment counts reveal routing problems
  • Report through a view joining metrics to the task

What metrics do

A metric definition records how long a field held a value, or how long a record was assigned to a person or group. Metric instances are created automatically and are the honest source for state duration reporting.

Types

Field value duration tracks time in each value of a field, for example each incident state. Script based metrics let you record custom durations. Both write metric instance records tied to the task.

Using the data

Metric instances answer questions SLAs cannot.

  • Time in Awaiting customer versus time in progress, per group
  • Number of reassignments before resolution, a strong quality signal
  • Average time in each state by category, which shows where a process stalls
  • Join to task through a database view for reporting

Want to learn this properly?

Our live, instructor-led ServiceNow Training covers this hands-on, with real projects and a certification path.

Check your understanding

  1. What does a field value duration metric record?

    • A. The number of updates
    • B. How long a field held each value
    • C. Who updated the record
    • D. SLA breaches
    Show answer

    B. How long a field held each value

    It measures time spent in each value.

  2. Which insight comes from reassignment counts?

    • A. Storage growth
    • B. Routing and skills problems
    • C. Licence usage
    • D. Index health
    Show answer

    B. Routing and skills problems

    Repeated reassignment usually means work is landing in the wrong queue.

Frequently asked questions

Metrics or Performance Analytics?

Metrics measure duration inside a record lifecycle. PA trends aggregate values over time. They answer different questions and are often used together.

Do metrics slow down saves?

They add a small cost per update on the tracked field. Track the fields you report on, not every field.
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