User story
As an integrator syncing our hotel systems with the CRM, I want activities and tasks in the current CRM API, so that calls, emails, notes and follow-ups from our systems show up on the contact.
Problem / context
Support asked us to post this separately (13.10.2026): activities and tasks are missing in the current API.
Acceptance criteria
  • CRUD for activities (call, email, meeting, note) and tasks, linked to contacts, companies and custom objects.
  • Upsert with an idempotency key; option to skip automations per request.