Project for the web limits and boundaries

There are important limitations that you should know if you are using Project for the web. These limits apply to projects and tasks.

Project limitations

Field Limit
Maximum total tasks for a project
Maximum total duration for a project
3650 days (10 years)
Maximum total resources for a project
Maximum total links (successor only) for a project
Maximum total custom fields for a project

Task limitations

Field Limit
Maximum hierarchy level
10 levels
Maximum links (successor + predecessor)
Maximum duration of leaf task
1250 days
Maximum duration of a summary task
3650 days (10 years)
Maximum resources assigned to a task
20 resources
Supported date range for a task
1/1/2000 - 12/31/2149