Why Construction Baseline Schedules Get Rejected
Common reasons owners reject construction baseline schedules and how contractors can improve logic, detail, narratives and specification compliance.
Discuss Your Project →Most rejected baselines fail for predictable reasons. The problem is often not Primavera P6—it is incomplete planning, unsupported logic or failure to address the scheduling specification.
The Schedule Does Not Match the Contract
Missing milestones, incorrect calendars, unapproved constraints or absent coding requirements can trigger rejection before the owner evaluates the execution plan.
The Logic Does Not Explain the Work
Open ends, excessive lags, hard constraints and broad summary activities make it difficult to trace how completion is calculated.
Procurement Is Added Too Late
Long-lead equipment, submittals and approvals must be connected to field need dates. A baseline that starts at installation hides major schedule risk.
The Detail Is Uneven
Thousands of low-value activities do not make a schedule detailed. Detail should be sufficient to manage scope, status work objectively and identify the responsible team.
The Narrative and Schedule Disagree
The written sequence, staffing assumptions and critical path should align with the P6 file. Conflicts undermine credibility.
Put the Schedule to Work
Tell us what you are building, where the project stands, and what the schedule needs to accomplish.