Enabling activities on custom objects
Key Takeaway
If you turn on Allow Activities after creating a custom object, you must add the activity related lists to the page layout manually.
Allow Activities is a setting on a custom object that lets users associate tasks and scheduled calendar events with that object's records. When you turn it on, and whether you later turn it off, affects page layouts and reports. Activities on custom objects also follow their own rules for account roll-ups and ownership changes.
Where Allow Activities is available
Allow Activities is part of a custom object's definition, and it also appears when you define a custom object in Schema Builder.
Activities on custom objects are available in both Salesforce Classic and Lightning Experience. The supported editions are:
- Contact Manager
- Group
- Professional
- Enterprise
- Performance
- Unlimited
- Developer