# Where can I create a message (reference) in flowable-ui?

**URL:** <https://forum.flowable.org/t/where-can-i-create-a-message-reference-in-flowable-ui/10450>\
**Category:** Uncategorized\
**Created:** [April 26, 2023, 5:21am UTC](https://forum.flowable.org/t/where-can-i-create-a-message-reference-in-flowable-ui/10450 "2023-04-26T05:21:57Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![dominik](https://avatars.discourse-cdn.com/v4/letter/d/ee7513/32.png) [@dominik](https://forum.flowable.org/u/dominik)\
**Post date:** [April 26, 2023, 5:21am UTC](https://forum.flowable.org/t/where-can-i-create-a-message-reference-in-flowable-ui/10450/1 "2023-04-26T05:21:57Z")

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Hello there!

Where in the UI can I create a message ID so that I can reference that in a message-boundary-event?

 ![Message-Boundary-Event](https://canada1.discourse-cdn.com/flex035/uploads/flowable/original/2X/9/9b20d2fc64c58d2e491dfae31fe09496ce01bb25.png)

I don’t see any “add” button when I open the attributes of a message-boundary-event?

Can someone tell me how to add a message?

Thank you

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**Author:** ![ColumbusWaugh](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/columbuswaugh/32/3159_2.png) [@ColumbusWaugh](https://forum.flowable.org/u/ColumbusWaugh)\
**Post date:** [April 26, 2023, 11:41am UTC](https://forum.flowable.org/t/where-can-i-create-a-message-reference-in-flowable-ui/10450/2 "2023-04-26T11:41:29Z")

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Maybe there are some restrictions, because you are a newcomer?

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**Author:** ![dominik](https://avatars.discourse-cdn.com/v4/letter/d/ee7513/32.png) [@dominik](https://forum.flowable.org/u/dominik)\
**Post date:** [April 26, 2023, 1:26pm UTC](https://forum.flowable.org/t/where-can-i-create-a-message-reference-in-flowable-ui/10450/3 "2023-04-26T13:26:58Z")

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Sorry for any confusion, but I downloaded and used the Open Source version of Flowable.

[https://www.flowable.com/open-source/docs/](https://www.flowable.com/open-source/docs/)

I deployed the flowable-ui.war inside a Tomcat application server and in the modeler, I can’t find any button to add a message. So that this message can be referenced, for example, in a boundary event.

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**Author:** ![CElbersen](https://avatars.discourse-cdn.com/v4/letter/c/dbc845/32.png) [@CElbersen](https://forum.flowable.org/u/CElbersen)\
**Post date:** [May 9, 2023, 12:24pm UTC](https://forum.flowable.org/t/where-can-i-create-a-message-reference-in-flowable-ui/10450/4 "2023-05-09T12:24:22Z")

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Hi Dominik, you can add a message definition on the process level. So in a new diagram click somewhere in the whitespace and look for the property ‘message definitions’. Click on it to add a new definition.