Here is a list of Drupal modules for both event and campaign management:

Event Management Modules

1. Calendar
   • Provides a flexible calendar interface for viewing and managing events.
   • Calendar Module
2. Date
   • Adds date and time functionality to your Drupal site, essential for event management.
   • Date Module
3. Entity Registration
   • Allows users to register for events. Supports multiple registration types and workflows.
   • Entity Registration Module
4. Event
   • A simple event content type with support for event fields and views.
   • Event Module
5. Event Registration
   • Provides a flexible way to handle event registrations, including custom fields and workflows.
   • Event Registration Module
6. FullCalendar
   • Integrates the FullCalendar jQuery plugin for displaying events in a full-sized calendar.
   • FullCalendar Module
7. Signup
   • Allows users to sign up for events and provides an interface for administrators to manage signups.
   • Signup Module
8. Room Reservations
   • Manages room bookings and reservations for events, with an intuitive calendar interface.
   • Room Reservations Module
9. Calendar Kit
   • Provides a suite of tools for building event calendars, including views and entities.
   • Calendar Kit Module
10. iCal
    • Allows importing and exporting events using the iCalendar format.
    • iCal Module
11. Quick Event
    • A lightweight module for quickly creating and managing events.
    • Quick Event Module
12. Roomify for Accommodations
    • Offers booking and reservation systems for rooms, ideal for events that require accommodations.
    • Roomify for Accommodations Module