How to Make a Field Required/Not Required Based on a "Yes" or "No" Selection.

Scenario

You have two fields:

1. A "Selection Box" named "Did you run a job?" with "Yes" and "No" options.

2. A "Text Area" field named "Field A"

Goal: "Field A" must be completed if the user selects "Yes" on "Did you run a job?". It can be left empty if the user selects "No".

Configuration Steps

The validation rules are set on "Field A" and are processed in order from top to bottom.

Step 1 - Navigate to your alert and open the Form tab.

Step 2 - Select "Field A" and go to the Field Validation Rules tab.

Step 3 - Add the following rules in this specific order:

Rule 1: Mark as VALID if "No" is selected.

data["Did you run a job?"]=="no"

• This rule checks the "MainCheck" field first. If it's "No", it marks the "DependentField" as valid, even if it's empty, and stops processing any further rules for this field.
• Click on 'Valid' to set the status, colour and a message.

Test:

Rule 2: Mark as VALID if "Yes" is selected AND field is filled.

(data["Did you run a job?"]=="yes")&&(data["Field A"]!="")

• This rule is only checked if Rule 1 was false (meaning "Yes" was selected). It marks the field as valid only if the user has entered any text.
• Click on 'Valid' to set the status, colour and a message.

Test:

Rule 3: Mark as INVALID (Catch-all).

1==1

• This is the final "catch-all" rule. It will only be reached if the first two rules fail, which in this case means the user selected "Yes" but left the "Fields" empty.

• Mark form as: Invalid (or Error to prevent submission)

• With message: "This field is required when 'Yes' is selected."

Test: