# Part 2: Parent context variable accessed in subflow’s first function node yields undefined?
**URL:** https://discourse.nodered.org/t/part-2-parent-context-variable-accessed-in-subflow-s-first-function-node-yields-undefined/59362
**Category:** Core Development
**Created:** [4 March 2022 12:50 UTC](https://discourse.nodered.org/t/part-2-parent-context-variable-accessed-in-subflow-s-first-function-node-yields-undefined/59362 "2022-03-04T12:50:01Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@r0ller](https://discourse.nodered.org/u/r0ller)
#### Post date: [4 March 2022 12:50 UTC](https://discourse.nodered.org/t/part-2-parent-context-variable-accessed-in-subflow-s-first-function-node-yields-undefined/59362/1 "2022-03-04T12:50:01Z")
The existing thread with the same topic got closed automatically so continuing it here...
Managed to make a minimal flow which can reproduce the issue on 2.2.2 and made a video of it. However, it still cannot be reproduced all the time...
I [shared the video](https://drive.google.com/file/d/1Jrl7F8bvFLgtAfSGX1jM8gHq5CHzpvXs/view?usp=sharing) on my google drive.
The flow contains two subflows of which subflow 1 receives a msg.payload from an inject node and stores that payload in a flow context variable:
```auto
let b=0;
node.warn(msg.payload);
flow.set("test",msg.payload);
return msg;
```
Then it calls subflow 2 which contains a function to get the same variable set in its parent:
```auto
let a=1;
node.warn(flow.get("$parent.test"));
return msg;
```
When I first click the inject, the node.warn() in subflow 1 logs the payload received (true) on the debug pane and the node.warn() in subflow 2 logs the value (undefined) of the variable read from the parent context.
Then I simply change an unnecessary code line (changing let a=0 to let a=1) in the function of subflow 2 just to be able to trigger a deploy. After that, injecting a payload to subflow 1 results in logging the same value (true) by both subflows.
Here is the flow exported:
```auto
[
{
"id": "f70d4fc3.c71c38",
"type": "subflow",
"name": "Subflow 2",
"info": "",
"in": [
{
"x": 80,
"y": 80,
"wires": [
{
"id": "e7a1deed.3d9288"
}
]
}
],
"out": [
{
"x": 320,
"y": 80,
"wires": [
{
"id": "e7a1deed.3d9288",
"port": 0
}
]
}
]
},
{
"id": "e7a1deed.3d9288",
"type": "function",
"z": "f70d4fc3.c71c38",
"name": "",
"func": "let a=1;\nnode.warn(flow.get(\"$parent.test\"));\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 200,
"y": 80,
"wires": [
[]
]
},
{
"id": "70f7ac75.ea8e34",
"type": "subflow",
"name": "Subflow 1",
"info": "",
"in": [
{
"x": 80,
"y": 80,
"wires": [
{
"id": "48517af6.d85314"
}
]
}
],
"out": [
{
"x": 480,
"y": 80,
"wires": [
{
"id": "ab5276b6.32ea1",
"port": 0
}
]
}
]
},
{
"id": "48517af6.d85314",
"type": "function",
"z": "70f7ac75.ea8e34",
"name": "",
"func": "let b=0;\nnode.warn(msg.payload);\nflow.set(\"test\",msg.payload);\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"x": 190,
"y": 80,
"wires": [
[
"ab5276b6.32ea1"
]
]
},
{
"id": "ab5276b6.32ea1",
"type": "subflow:f70d4fc3.c71c38",
"z": "70f7ac75.ea8e34",
"name": "",
"env": [],
"x": 360,
"y": 80,
"wires": [
[]
]
},
{
"id": "aa2b5804.9cad4",
"type": "subflow:70f7ac75.ea8e34",
"z": "fb075204.b32578",
"name": "",
"env": [],
"x": 340,
"y": 540,
"wires": [
[]
]
},
{
"id": "ec2e7096.f0e618",
"type": "inject",
"z": "fb075204.b32578",
"name": "",
"props": [
{
"p": "payload"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": "0",
"topic": "",
"payload": "true",
"payloadType": "bool",
"x": 170,
"y": 540,
"wires": [
[
"aa2b5804.9cad4"
]
]
}
]
```
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [10 March 2022 11:13 UTC](https://discourse.nodered.org/t/part-2-parent-context-variable-accessed-in-subflow-s-first-function-node-yields-undefined/59362/2 "2022-03-10T11:13:04Z")
Please either stick to forum or Issue tracker.
Issue raised here: [Parent context variable accessed in subflow’s first function node yields undefined · Issue #3485 · node-red/node-red · GitHub](https://github.com/node-red/node-red/issues/3485)
Closing this thread to reduce duplication.
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [10 March 2022 11:13 UTC](https://discourse.nodered.org/t/part-2-parent-context-variable-accessed-in-subflow-s-first-function-node-yields-undefined/59362/3 "2022-03-10T11:13:10Z")