JavaScript API bug fix (Jan 20th 2020)

After the January update, we noticed a bug occurring on the Kintone platform related to the Kintone JavaScript API.
This bug has now been fixed through today's unscheduled maintenance.

Bug Details


The bug unintentionally triggered some Kintone Field Change events when using the or events under certain conditions.


  • Either the or events are used in the JavaScript code
  • Calculations are set inside a Calculated field or a Text field
  • The calculation refers to a field that contains no value
  • The Record Create or Record Edit page is displayed

Behavior before the fix

One of the following Field Change Events were triggered

Behavior after the fix

No Field Change Events trigger.



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