Here’s the latest on how Chatter licensing works for companies on Salesforce Professional Edition.
If you want to purchase less than 15 Chatter licenses:
– Chatter will only have access to Profiles, People and Content.
– Cost is $180/year per person
If you want read-only access to Accounts & Contacts there is an additional cost of $300/year per person.
If you purchase 15 or more Chatter licenses then read-only access to Accounts & Contacts is included for the cost of $180/user per year.
Chatter does not include access to Leads & Opportunities.