# Button/Rule formula cannot set only half of an uninitialized Date Range

**URL:** <https://community.fibery.io/t/button-rule-formula-cannot-set-only-half-of-an-uninitialized-date-range/2791>\
**Category:** Bugs & Issues\
**Tags:** automations, formulas\
**Created:** [May 12, 2022, 5:07pm UTC](https://community.fibery.io/t/button-rule-formula-cannot-set-only-half-of-an-uninitialized-date-range/2791 "2022-05-12T17:07:53Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Matt\_Blais](https://sea2.discourse-cdn.com/flex020/user_avatar/community.fibery.io/matt_blais/32/1464_2.png) [@Matt\_Blais](https://community.fibery.io/u/Matt_Blais)\
**Post date:** [May 12, 2022, 5:13pm UTC](https://community.fibery.io/t/button-rule-formula-cannot-set-only-half-of-an-uninitialized-date-range/2791/3 "2022-05-12T17:13:58Z")

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In the UI you can update only half of the range with no problem - it’s an automation issue.

For that matter it would be useful to have a `Null` constant in Formulas, so we can actually set something to null/empty. Anything that can be done in the UI should also be able to be done by Automation.

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_[View the full topic](https://community.fibery.io/t/button-rule-formula-cannot-set-only-half-of-an-uninitialized-date-range/2791)._