Skip to main content

Documentation Index

Fetch the complete documentation index at: https://docs.crewai.com/llms.txt

Use this file to discover all available pages before exploring further.

Passing id inside inputs to hydrate a @persist flow is deprecated and scheduled for removal in a future release. The replacement, restore_from_state_id, is available in CrewAI v1.14.5 and later — the steps below apply once you upgrade.

​
Overview

The documented way to hydrate a @persist flow from a previous execution is to pass that execution’s UUID as inputs.id. CrewAI now exposes a dedicated field, restore_from_state_id, that performs the same hydration without overloading the inputs payload — and without coupling the hydration key to the new execution’s identity.

​
Migration

If you currently kickoff a @persist flow with inputs={"id": ...}: 
# Deprecated
flow = CounterFlow()
flow.kickoff(inputs={"id": "abcd1234-5678-90ef-ghij-klmnopqrstuv"})
Switch to restore_from_state_id: 
# Supported
flow = CounterFlow()
flow.kickoff(restore_from_state_id="abcd1234-5678-90ef-ghij-klmnopqrstuv")
The two modes have different lineage semantics:
  • inputs={"id": <uuid>} (deprecated) — resume: writes land under the supplied id, extending the same flow_uuid history.
  • restore_from_state_id=<uuid> — fork: hydrates state from the snapshot, then writes under a fresh state.id. The source flow’s history is preserved.
For most production scenarios — re-running a flow seeded from a previous state — fork is what you want. See Mastering Flow State for the full mental model. If you kickoff your flow over the CrewAI AMP REST API, see AMP below for the equivalent payload migration.

​
Why we are deprecating inputs.id for @persist

inputs.id is currently the documented way to resume a @persist flow from a previous execution. The problem is that the same UUID does two jobs at once:
  1. It selects which snapshot @persist hydrates from — load the state saved under that UUID.
  2. It becomes the new execution’s Flow Execution ID (state.id in the SDK; surfaced as flow_id in some contexts) — every @persist write from this kickoff also lands under that same UUID.
This dual role is the root cause of the issues this guide describes. Because the supplied UUID is also the new execution’s id, two kickoffs that pass the same inputs.id are not two distinct executions — they share an id, share a persistence record, and (on AMP) share a row in the executions list. There is no way to say “hydrate from this snapshot, but record this run separately” without splitting the two responsibilities. restore_from_state_id is that split. It tells @persist which snapshot to hydrate from, while leaving the new execution free to receive a fresh state.id. The hydration source and the recorded run are no longer the same UUID — which is what most production scenarios actually want.

​
Removal timeline

inputs.id for @persist hydration is scheduled for removal in a future release of CrewAI. There is no immediate hard cut-off — existing flows continue to work — but once you upgrade to v1.14.5 or later, new code should use restore_from_state_id, and existing flows should migrate at the next convenient opportunity.

​
AMP

If you deploy your flow to CrewAI AMP, the migration extends to the kickoff payload sent to your deployed crew, and the visible symptoms of reusing inputs.id show up on the deployment dashboard. The two subsections below cover both.

​
Migrating the kickoff payload

If you currently kickoff a deployed flow by embedding id in inputs: 
# Deprecated
curl -X POST \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_CREW_TOKEN" \
  -d '{"inputs": {"id": "abcd1234-5678-90ef-ghij-klmnopqrstuv", "topic": "AI Agent Frameworks"}}' \
  https://your-crew-url.crewai.com/kickoff
Move the UUID to the top-level restoreFromStateId field: 
# Supported
curl -X POST \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_CREW_TOKEN" \
  -d '{
        "inputs": {"topic": "AI Agent Frameworks"},
        "restoreFromStateId": "abcd1234-5678-90ef-ghij-klmnopqrstuv"
      }' \
  https://your-crew-url.crewai.com/kickoff
restoreFromStateId sits next to inputs in the kickoff payload, not inside it. The inputs object now only carries values your flow actually consumes.

​
What happens when inputs.id is reused

When AMP receives a kickoff for a flow whose inputs.id matches an existing execution, it resolves to the existing record rather than creating a new one. From the deployment dashboard you’ll see:
  • Execution status — the new run’s status overwrites the previous run’s. A finished execution can flip back to running, or a completed run can flip to error if the new kickoff fails — either way the dashboard no longer reflects the original run.
  • Traces — OTel traces stack across kickoffs because they share the same execution id; the previous run’s traces are either replaced by, or mixed with, the new run’s. A step-by-step replay no longer corresponds to a single execution.
  • Executions list — kickoffs that should appear as separate rows collapse into a single entry, hiding history.
Migrating to restoreFromStateId keeps every kickoff as its own execution — with its own status, traces, and row in the list — while still hydrating state from a previous run.

Need Help?

Contact our support team if you’re unsure which mode your flow needs or hit issues during the migration.