# Unable to save a collapsed sub-process in Flowable Modeler

**URL:** <https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597>\
**Category:** Flowable Application\
**Created:** [March 10, 2020, 8:26am UTC](https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597 "2020-03-10T08:26:54Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![petarg](https://avatars.discourse-cdn.com/v4/letter/p/ecd19e/32.png) [@petarg](https://forum.flowable.org/u/petarg)\
**Post date:** [March 10, 2020, 8:26am UTC](https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597/1 "2020-03-10T08:26:54Z")

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Hello,

in Flowable Modeler after saving a process definition containing a Collapsed Sub-process event, when I re-open the process and go into Sub-process definition it is empty. Nothing is being saved inside.

What may be the cause of the problem?

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**Author:** ![petarg](https://avatars.discourse-cdn.com/v4/letter/p/ecd19e/32.png) [@petarg](https://forum.flowable.org/u/petarg)\
**Post date:** [March 10, 2020, 11:18am UTC](https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597/2 "2020-03-10T11:18:02Z")

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Additional info:

It seems the bug is happening while trying to put Collapsed Subprocess event into Pool/Lanes.  
If put outside of the Pool, it acts normal.

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**Author:** ![joram](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/joram/32/26_2.png) [@joram](https://forum.flowable.org/u/joram)\
**Post date:** [March 14, 2020, 2:59pm UTC](https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597/3 "2020-03-14T14:59:17Z")

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> [@petarg](#):
>
> It seems the bug is happening while trying to put Collapsed Subprocess event into Pool/Lanes.

Most likely this isn’t properly added. Can you describe which steps your doing? Do you mean an event subprocess? Not sure I’m understanding it fully.

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**Author:** ![petarg](https://avatars.discourse-cdn.com/v4/letter/p/ecd19e/32.png) [@petarg](https://forum.flowable.org/u/petarg)\
**Post date:** [March 15, 2020, 8:23pm UTC](https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597/4 "2020-03-15T20:23:54Z")

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I’ll do my best to explain it.  
In Flowable Modeler, I made a Pool with corresponding Lanes. I started building a process inside the Pool. At some point I added a Collapsed subprocess event inside. After editing the Collapsed subprocess event in its own tab, I clicked on the save button and exited the visual editor for the given process. When going back inside the editor for the same process , I realized that Collapsed subprocess event is empty. Nothing was saved inside.

I tried recreating the same steps, only without Pool/Lane functionalisy, and then it worked. It was saved.

I hope I explained it a little bit better. I can provide screenshots tommorow if it is still unclear what I am talking about.

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**Author:** ![tommy](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/tommy/32/1438_2.png) [@tommy](https://forum.flowable.org/u/tommy)\
**Post date:** [May 6, 2020, 7:10am UTC](https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597/5 "2020-05-06T07:10:22Z")

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I checked and happen this error in flowable version 6.4  
When I try add collapse sub process into land.

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**Author:** ![jasoniem9246](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/jasoniem9246/32/2265_2.png) [@jasoniem9246](https://forum.flowable.org/u/jasoniem9246)\
**Post date:** [February 25, 2021, 2:06pm UTC](https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597/6 "2021-02-25T14:06:37Z")

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Same on version 6.6. Collapsed subprocess cannot be in Pool.

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**Author:** ![WalidEll](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/walidell/32/2722_2.png) [@WalidEll](https://forum.flowable.org/u/WalidEll)\
**Post date:** [March 14, 2022, 9:19pm UTC](https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597/7 "2022-03-14T21:19:43Z")

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The same problem with version 6.7.2, the collapsed subprocess is not saved in the pool.

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**Author:** ![Aliko](https://avatars.discourse-cdn.com/v4/letter/a/58f4c7/32.png) [@Aliko](https://forum.flowable.org/u/Aliko)\
**Post date:** [May 31, 2022, 10:05am UTC](https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597/8 "2022-05-31T10:05:19Z")

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I see that this problem still appears. Any workaround with keeping pools in place?

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**Author:** ![TomiLi](https://avatars.discourse-cdn.com/v4/letter/t/c2a13f/32.png) [@TomiLi](https://forum.flowable.org/u/TomiLi)\
**Post date:** [December 17, 2025, 7:33am UTC](https://forum.flowable.org/t/unable-to-save-a-collapsed-sub-process-in-flowable-modeler/5597/9 "2025-12-17T07:33:45Z")

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In 2025 and version 6.8 this problem still occurs ☹
