For "normal" data types, such as accounts and contacts, you can view a user's usage by viewing their detail page and clicking on "[View]" in the "Usage" field. This will give you a storage calculation of a user's data by data type.
Here is sample data from one of my Developer Edition accounts:
Record Type Record Count Storage Usage Percent
Leads 39 78 KB 16%
Contacts 38 76 KB 16%
Opportunities 37 74 KB 15%
Cases 28 56 KB 11%
Accounts 28 56 KB 11%
Campaigns 4 32 KB 7%
Tasks 15 30 KB 6%
Events 11 22 KB 5%
Solutions 10 20 KB 4%
Bugs 5 10 KB 2%
Features 3 6 KB 1%
Comments 2 4 KB 1%
Demo 2 4 KB 1%
Development Times 2 4 KB 1%
Milestones 2 4 KB 1%
Attachment Reports 2 4 KB 1%
Settings 1 2 KB 0%
Projects 1 2 KB 0%
Notes 1 2 KB 0%
Carriers 1 2 KB 0%
Tests 0 0 B 0%
Note that Percent
may not total 100% due to rounding, and Storage Usage
will be rounded when the values are large (e.g. MB or GB). Also, the Percent
isn't relative to the entire database's capacity or the total data space used, but simply a percent of that user's data usage (e.g. if 50% of the data is in tasks, and the user owns 100,000 records, then ~50,000 records are tasks). This statistic allows administrators to determine where the bulk of a user's data lies.
Data Usage
is synoymous with "records owned", since the owner of the record is said to be the user that the Data Usage
is associated with. Changing the ownership of a record will also change that user's Data Usage
statistic by the same amount. These values are indexed, so there is often some delay between when the records are created, transferred, or deleted, and when they will actually appear in the user's Data Usage
statistic.
Some data types do not have an owner and will only appear in the organization's usage statistics. Other records aren't counted here, such as AccountShare
records, and are considered metadata. Detail records in a custom master-detail relationship assume that the owner of the master record also owns the children, and this will be reflected in the Data Usage
statistic. Finally, records in the Recycle Bin are not counted.