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Intermediate · 2 min read

Run and disposition P6 Check Schedule

Screen logic, lags, constraints, float, durations, progress, baselines, closed-project links, and out-of-sequence work.

Working definition

P6 Check Schedule is a screening tool. It can identify warning signs across open projects and apply configurable thresholds, but it cannot decide whether an exception is contractually required, operationally correct, or analytically material. Professional use pairs the report with filters, trace-logic review, documented dispositions, and a rerun after corrections.

Version scope

Desktop P6 Professional workflow. Menu labels are aligned with Oracle’s current Version 26 help; older 24.x deployments may show minor wording or privilege differences.

Key takeaways

  • Set and record project-appropriate thresholds before running the report.
  • Investigate findings in context; metrics are screening evidence, not automatic verdicts.
  • Retain the report, disposition register, corrected file, and rerun.
01

Configure thresholds before interpreting results

Long duration, long lag, and large float require project-specific thresholds and calendar awareness. Record the values used so counts can be reproduced from one update to the next.

02

Every exception needs a disposition

Classify each finding as corrected, accepted with reason, not applicable, or pending evidence. Preserve the before and after report. A lower issue count without a disposition can indicate deletion or relaxed thresholds rather than improvement.

Run a reproducible P6 quality screen

Use a controlled copy when the reviewer should not alter the submitted schedule.

Menu path: Tools > Check Schedule Report

Before you start

  • Native submitted file
  • Correct data date and schedule calculation
  • Approved thresholds
  • Disposition register
  1. Open only the intended project set

    Confirm open projects, external links, and the calculation used for review.

    Verify: Project IDs, data dates, and activity counts match the submission record.

  2. Select checks

    Choose logic, lags, relationship types, constraints, float, durations, progress, resources/cost, late work, baseline, links, OOS, and dangling checks as applicable.

    Verify: The selected scope matches the review protocol.

  3. Set thresholds

    Enter approved long-lag, large-float, and large-duration values using the schedule’s calendar convention.

    Verify: Thresholds are recorded with the report.

  4. Generate the report

    Choose a controlled filename and run Check Schedule.

    Verify: The report identifies project, data date, counts, and individual exceptions.

  5. Inspect failures

    Use View > Check Schedule filters or controlled exception layouts to trace each material item.

    Verify: Every exception has a cause, effect, owner, and proposed disposition.

  6. Correct and rerun

    Apply authorized corrections in a working copy and rerun with identical thresholds.

    Verify: The before/after change is explained and no new defect was introduced.

    Field-ready control

    Check Schedule evidence package

    • Submitted native file preserved
    • Correct project and data date
    • Checks and thresholds recorded
    • Report retained
    • Exceptions traced to activities
    • Disposition recorded
    • Authorized corrections only
    • Identical-threshold rerun retained

    Common questions

    Does a schedule pass if it is under every threshold?

    No. The report does not validate scope completeness, means and methods, duration basis, field status, contract alignment, or whether the relationships describe a buildable plan.

    Sources and scope

    Follow the reference trail.

    This guide is original educational commentary. Kairos reference records identify the source organizations, editions and scope behind this guidance. The original publishers retain their publications and rights.

    Checking schedulesOracle · checked 2026-08-01Check a scheduleOracle · checked 2026-08-01Schedule Assessment Guide: Best Practices for Project SchedulesU.S. Government Accountability Office · checked 2026-08-01UFGS 01 32 01.00 10: Project ScheduleWhole Building Design Guide / U.S. Department of Defense · checked 2026-08-01