# If there is 1 property if that changes we need to update other properties value, how can we do that in constellation

**URL:** <https://forums.pega.com/t/if-there-is-1-property-if-that-changes-we-need-to-update-other-properties-value-how-can-we-do-that-in-constellation/12255>\
**Category:** User Experience\
**Tags:** case-management\
**Created:** [June 3, 2026, 8:36am UTC](https://forums.pega.com/t/if-there-is-1-property-if-that-changes-we-need-to-update-other-properties-value-how-can-we-do-that-in-constellation/12255 "2026-06-03T08:36:29Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![TanyaS58](https://avatars.discourse-cdn.com/v4/letter/t/b487fb/32.png) [@TanyaS58](https://forums.pega.com/u/TanyaS58)\
**Post date:** [June 3, 2026, 8:36am UTC](https://forums.pega.com/t/if-there-is-1-property-if-that-changes-we-need-to-update-other-properties-value-how-can-we-do-that-in-constellation/12255/1 "2026-06-03T08:36:29Z")

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There is 1 property if that changes we need to update other properties value, how can we do that in constellation-Ideally in normal theme cosmos we have event action set but how to do this in constellation?

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**Author:** ![SvenKrow](https://avatars.discourse-cdn.com/v4/letter/s/8edcca/32.png) [@SvenKrow](https://forums.pega.com/u/SvenKrow)\
**Post date:** [June 3, 2026, 9:48am UTC](https://forums.pega.com/t/if-there-is-1-property-if-that-changes-we-need-to-update-other-properties-value-how-can-we-do-that-in-constellation/12255/2 "2026-06-03T09:48:43Z")

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Does declare expression work?

Alternatively there are

1. Form Refresh option in the flow action
2. pyRefreshData DT

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**Author:** ![Mamatha\_Reddy\_Mali](https://avatars.discourse-cdn.com/v4/letter/m/bc79bd/32.png) [@Mamatha\_Reddy\_Mali](https://forums.pega.com/u/Mamatha_Reddy_Mali)\
**Post date:** [June 3, 2026, 10:10am UTC](https://forums.pega.com/t/if-there-is-1-property-if-that-changes-we-need-to-update-other-properties-value-how-can-we-do-that-in-constellation/12255/3 "2026-06-03T10:10:05Z")

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Hi Tanya Singh,

One option in Constellation is to use the Refresh Settings available on the Flow Action. You can configure a Data Transform under the refresh settings to update other property values whenever the source property changes.I have attached a screenshot for your reference.

 ![image](https://pega1.discourse-cdn.com/pega/original/3X/e/2/e2a6ee7126a647d2138fc45ef996eededa71e274.png)

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**Author:** ![Sohan\_Reddy\_Anugu](https://avatars.discourse-cdn.com/v4/letter/s/e495f1/32.png) [@Sohan\_Reddy\_Anugu](https://forums.pega.com/u/Sohan_Reddy_Anugu)\
**Post date:** [June 3, 2026, 10:38am UTC](https://forums.pega.com/t/if-there-is-1-property-if-that-changes-we-need-to-update-other-properties-value-how-can-we-do-that-in-constellation/12255/4 "2026-06-03T10:38:33Z")

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You can acheive this By DT where we should call the DT on the property which we want to manupulate the Data in the form refresh.

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**Author:** ![TanyaS58](https://avatars.discourse-cdn.com/v4/letter/t/b487fb/32.png) [@TanyaS58](https://forums.pega.com/u/TanyaS58)\
**Post date:** [June 3, 2026, 1:34pm UTC](https://forums.pega.com/t/if-there-is-1-property-if-that-changes-we-need-to-update-other-properties-value-how-can-we-do-that-in-constellation/12255/5 "2026-06-03T13:34:45Z")

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Hi @SvenKrow I didnt try declare expression but can check that,thanks.