Limits for Chatter Plus user licenses.
| Chatter Plus Feature | Allocation |
|---|---|
| Chatter Plus licenses in your org | Unlimited |
| Data storage per Chatter Plus user | 20 MB |
| File storage per Chatter Plus user (Professional Edition) | 612 MB |
| File storage per Chatter Plus user (Enterprise, Performance, and Unlimited Editions) | 2 GB |
The limits are subject to change. Contact Salesforce for more information.