---
title: "Migrating from inputs.id to restore_from_state_id"
description: "Move @persist flows off the deprecated inputs.id hydration onto the supported restore_from_state_id field"
icon: "arrow-right-arrow-left"
---
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": ...}`:
```python
# Deprecated
flow = CounterFlow()
flow.kickoff(inputs={"id": "abcd1234-5678-90ef-ghij-klmnopqrstuv"})
```
Switch to `restore_from_state_id`:
```python
# Supported
flow = CounterFlow()
flow.kickoff(restore_from_state_id="abcd1234-5678-90ef-ghij-klmnopqrstuv")
```
The two modes have different lineage semantics:
- `inputs={"id": }` (deprecated) — **resume**: writes land under the supplied
id, extending the same `flow_uuid` history.
- `restore_from_state_id=` — **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](/en/guides/flows/mastering-flow-state)
for the full mental model.
If you kickoff your flow over the CrewAI AMP REST API, see [AMP](#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`:
```bash
# 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:
```bash
# 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.
Contact our support team if you're unsure which mode your flow needs or hit issues
during the migration.