Product Family: Act!
Product: Act! Pro, Act! Premium
Cause: This can be caused due to the database schema not completing correctly during the upgrade.
- Manually run the database schema update script to force the update to complete. For information on manually running the database schema update script, refer to the following knowledgebase article:
How to manually run the database schema update script in Act!
- Attempt to schedule an Activity on behalf of another user to test