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How can I request matching input in two different fields in 123FormBuilder?

Sometimes, the input provided in two form fields must be identical; for example, when you are asking users to provide and confirm their email addresses.

This type of validation can be easily enabled by following the below steps:

  • add the two fields in which the input should be identical
  • click on the second field and go to Validation
  • tick the checkbox Match another field value
  • in the dropdown list that appears, select the matching form field.

By doing this, the pairing is done on both fields. If respondents provide different inputs for the two fields, they get an error indicating that the input must be identical, so they can not submit the form unless the two email addresses aren’t identical.


You can change the text of the message in the Language→ System Messages section (you can search by the word identical in order to find the system message that you want to edit)

Change error text

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