# Appendix A - Microsoft Project Specifications

The following specifications and limits are supported in Microsoft Project on Windows 95 or Windows NT, although actual limits and performance speed are greatly dependent on your computer’s configuration. Please note that Out of Memory errors may occur before you reach the listed limits.

Attribute | Maximum
--- | ---
Tasks per project file | limited by available memory
Resources per project | limited by available memory
Resource units per assignment | 10,000 units or 1,000,000 percent
Task dependencies per project file | no limit
Predecessors per task | no limit
Successors per task | no limit
Outline levels per project | 65,535
Consolidated projects | 1,000
Open project files per consolidated project | 1,000
Sharer files connected to a resource pool | 999 (i.e., maximum open project files minus 1 for the resource pool itself)
Open windows | 50
Base calendars | unlimited
Calendar exceptions per calendar | 1,000
Printable tasks in monthly calendar | 4,000
Rate tables to support different pay scales and rates | 5 per resource
Variable rates per rate table to support rate increases and decreases | 25
Maximum cost value in a currency field | 999,999,999,999
Maximum work value | 1,666,666,664 hours
Print scaling adjustment range percentage | 10 to 500 percent
Page header text | 5 lines
Page footer text | 3 lines
Page legend text | 3 lines
Page legend text box width | 5 inches (12.7 centimeters)
Filter tests per filter | 40
Filter tests per AutoFilter | 2 per column
Earliest date allowed for calculation | January 1, 1984
Latest date allowed for calculation | December 31, 2049

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