One category of items found in the Activity stream is Milestones:
Milestones comprise a long list of actions that have been taken on an Account and typically do not link to additional overlays. This list includes the following:
- Account(s) merged
- Account created as "Lead"
- Account created as "Client"
- Estimate won
- Estimate lost
- Account converted to "Client"
- Job sold
- Job cancelled
- "Client" Account was cancelled
- "Lead" Account was closed
- "Client" Account was reactivated
- "Lead" Account was reactivated