Ticketing, queues & SLA
Freshdesk
Multiple SLA policies and intelligent routing sit in Pro, skill-based routing and audit logs arrive with Enterprise, and the archiving lifecycle is documented down to the 120-day rule for closed tickets, which is a real status model rather than a labelled mailbox. What I can't find is the hundredth-reply machinery: no public information on breach warnings, escalation chains, macros, business-hours SLAs, or how deep ticket search actually goes.
Zendesk
The engine bones are there at the entry tier — ticket distribution, triggers and automations, vorformulierte Antworten (that's macros) — and skills-based distribution shows up at Professional. But the evidence says not one word about SLA timers, breach warnings, escalation chains, merge/split, or search; after six years, if I can't pull the half-remembered thread out of ten thousand, the rest is decoration.