# Sub flows..... Dumb question
**URL:** https://discourse.nodered.org/t/sub-flows-dumb-question/12847
**Category:** General
**Created:** [3 July 2019 06:13 UTC](https://discourse.nodered.org/t/sub-flows-dumb-question/12847 "2019-07-03T06:13:22Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [3 July 2019 06:13 UTC](https://discourse.nodered.org/t/sub-flows-dumb-question/12847/1 "2019-07-03T06:13:22Z")
I have started using sub-flows and it is great.
My understanding is that I have a flow and because parts of it are repeated, rather than have the same nodes repeated, I can use a sub-flow and it acts like a "sub-routine" (from basic).
Yeah, as many of you may know: I'm not the best coder, and I have changed a couple of things in the sub-flow as I have found problems with their working/s.
To edit them I understand I can either double click on the icon and then "edit sub-flow" or double click on it from the left window.
Alas now I have 6 versions in the list.
I get that I am using multiple occurrences of them, but that's the whole idea - isn't it?
What have I done "wrong"?
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### Author:  [@michaelblight](https://discourse.nodered.org/u/michaelblight)
#### Post date: [3 July 2019 06:35 UTC](https://discourse.nodered.org/t/sub-flows-dumb-question/12847/2 "2019-07-03T06:35:14Z")
Yeah something is going wrong. I've always double-clicked the sub-flow in the flow and then clicked "edit sub-flow". Then I make changes and click "Save". I've never ended up with multiple versions, even though the sub-flow is used multiple times in flows. Can you detail the exact steps to the issue so others can replicate?
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### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [3 July 2019 07:08 UTC](https://discourse.nodered.org/t/sub-flows-dumb-question/12847/3 "2019-07-03T07:08:20Z")
Alas I can't give an example of how I did it. I just noticed it today.
All the editing was done days ago.
Just on a thought: If the "nodes" aren't yet _wired up_ would that cause this to happen?
I'll do some testing here on another machine. Testing on the machine shown, `DEPLOY` takes about 4 minutes.
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### Author:  [@knolleary](https://discourse.nodered.org/u/knolleary)
#### Post date: [3 July 2019 07:43 UTC](https://discourse.nodered.org/t/sub-flows-dumb-question/12847/4 "2019-07-03T07:43:22Z")
That looks like you have imported a flow into the editor that includes the subflow... Which results in a copy of the subflow being added to the palette.
We have an item on the backlog to handle that better by detecting that you are importing a subflow you already have and then offering to either update the existing subflow, or add a copy.
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### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [3 July 2019 07:48 UTC](https://discourse.nodered.org/t/sub-flows-dumb-question/12847/5 "2019-07-03T07:48:16Z")
Thanks. It isn't urgent.
Is there anything I can do to remove the extra entries?
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### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [3 July 2019 07:49 UTC](https://discourse.nodered.org/t/sub-flows-dumb-question/12847/6 "2019-07-03T07:49:01Z")
Delete them.
Double click it, press delete button
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### Author:  [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [3 July 2019 07:50 UTC](https://discourse.nodered.org/t/sub-flows-dumb-question/12847/7 "2019-07-03T07:50:04Z")
Mia Culpa.
Thanks Steve.
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [3 July 2019 08:47 UTC](https://discourse.nodered.org/t/sub-flows-dumb-question/12847/8 "2019-07-03T08:47:10Z")
You might want to check where they are used first, so you can replace them with the other version. Assuming they are used.