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We have some background processing on form and in the result, some of the form fields can become null. So how should information message about this action look like? The best option we have "The value of X was set to blank".

  • Can you show us a visual mock of your efforts and the surrounding context? What's the domain, who are the users? Do they understand technical terms? Where does this message show up? is it outside the form? The more context, the better the available answers tend to be, and the more the question is valuable to others. – Mike M Jun 26 '19 at 19:09
  • Why would they become null or empty? – DarrylGodden Jul 29 '19 at 7:52
  • What do you mean by "null"? The default option or zero? – Madalina Taina Aug 5 '19 at 6:10
  • Are you suggesting a dependent field like City to Country? Hopefully the null values do not appear in too many fields. You can highlight and maintain focus on the appropriate field or section to suggest that it needs user attention. A message may not be necessary. If needed a contextual message on the side of the field can be added. – Ren Jan 2 at 7:53
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If I am understanding your question, there are some fields on your form that when information is entered, override some other fields that are no longer needed (for example, use saved phone number vs. enter a new one)

picture of form with with a phone number field or a radio button for a saved number


First the field should be disabled (visually, that is usually achieved by reducing opacity or graying out) picture of form with with the phone number field now disabled and the radio button for a saved number selected


Second if the user has already entered input, you probably do not want to clear the value from the disabled field and instead just ignore that field when submitting. That way if the user were to change their mind, they could go back and continue editing the field without having to type everything all over again.

picture of form with the phone number field containing a user entered number being disabled and the radio button for a saved number selected

picture of form with the phone number field containing a user entered number enabled, and the radio button for a saved number deselected

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