Custom forms: “Whoops” error when setting up a calculated field

When a user is creating or editing a calculated field on a custom form, and includes a custom field in the calculated field’s expression, the expression is considered invalid. The Save button is disabled, and the user cannot navigate away from the custom field. In addition, the user sees the following message below the field:

“Whoops! Something went wrong. Please contact Workfront so we can figure out what went wrong and fix it.”

Removing the custom field from the expression allows the user to save and navigate away from the field.

First reported on October 11, 2022.