Datasheet
SoFtware limitationS 
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  39
Object Maximum value Type of object limit Details
Major 
Versions
400,000 List and library limit Passing this limit can have surprising 
performance effects, causing issues 
with file open, save, delete, and view 
history.
Items 30,000,000 per list List and library limit You can create very large lists using 
standard views that filter by meta-
data and by using folders. This value 
can also vary depending on number of 
columns and how the list is used.
Number of 
SharePoint 
Groups a User 
Can Belong To
5,000 Security limit This is consistent with Active 
Directory guidelines. Can be affected 
by size of tokens, the number of 
groups SharePoint is caching, and 
how long it takes to do security 
checks.
Users in a Site 
Collection
2 million per site 
collection
Security limit You can add millions of people to 
a website using security groups 
(instead of individual users). The 
limit particularly affects the manage-
ability and ease of navigation in the 
user interface.
Active 
Directory 
principals/
Users in a 
SharePoint 
Group
5,000 per 
SharePoint group
Security limit Activities affected by this limit (or 
exceeding it) are fetching users to 
validate permissions and rendering 
the membership of a view.
SharePoint 
Groups
10,000 per site 
collection
Security limit When greater than 10,000, the time it 
takes to execute operations increases 
significantly
Security 
Principal: 
Size of the 
Security 
Scope
5,000 per ACL Security limit The number of security prinicipals 
per access control list for an object. 
The size of the scope affects the data 
used for security check calculations. 
There is no hard limit, but the bigger 
the scope, the longer the calculation 
takes.
Table 1.3:  Software limitations for SharePoint Foundation 2010   (continued)
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