Change Data Capture Developer Guide

Change Data Capture
Keep Your External Data Current with Change Data Capture
Change Event Message Structure
Merged Change Events
Other Types of Change Events: Gap and Overflow Events
Subscribe to Change Events
Monitor Change Event Publishing and Delivery Usage
Security Considerations
Change Event Considerations
Standard Object Notes
Change Events for Tasks and Events
Recurring Activities
Event Invitees
Updating Recurring Calendar Events
Shared Activities and Parent Records for Tasks and Events
Change Events for Person Accounts
Change Events for Users
Change Events for Lead Conversion
Change Events for PricebookEntry
Change Events for Fields
PDF

Updating Recurring Calendar Events

If a critical change is made to a recurring calendar event, such as changing the recurrence pattern or the recurrence start date, the series is deleted and recreated.

If a recurring calendar event contains many invitees and many occurrences, a critical change can lead to many change events. For example, updating the recurrence start date of a calendar event with 100 occurrences and 100 invitees results in deleting and recreating 10,000 child Event records (100 records x 100 occurrences) and 10,000 EventRelation records. A high volume of changes in a single transaction could generate overflow events. For more information, see Overflow Events.