# What can't I use cff for?
This list is non-exhaustive, but we do not recommend trying to use cff for the following use cases:
- Durable workflow orchestration: cff operates exclusively within the bounds of a single process and cannot provide any durability guarantees. Instead, use Cadence (opens new window) or Temporal (opens new window).
- Long-running tasks: cff tasks have a definite start and end, and cff flows and parallels are typically scoped to a single function call. Instead, spawn your own goroutines for that. Carefully (opens new window).