Multiple Boolean Checkboxboxfield only one checkbox can be selected at a time

Hi [mention:203551a7d3bd4173b040fb5b4bd8a8b8:e9ed411860ed4f2ba0265705b8793d05] 

When you are selecting one checkbox set other checkboxes as null in the selected value saveinto.

When you are selecting Hearing Required set null as compliance and reminder, the same way you can implement for compliance and reminder as well.

If the selected value is hearing - set null as compliance and reminder in hearing checkbox saveinto.

If the selected value is reminder- set null as hearing and compliance in the reminder checkbox saveinto.

If the selected value is compliance- set null as hearing and reminder in the complaince checkbox saveinto

eg:

In hearing checkbox saveinto

{

a!save(

local!reminderSelected, null()

),

a!save(

local!complianceSelected, null()

)

}

a!localVariables(
  local!hearingSelected,
  local!reminderSelected,
  local!complianceSelected,
  a!columnsLayout(
    columns: {
      a!columnLayout(
        contents: {
          a!checkboxField(
            choiceLabels: { "Hearing Required" },
            choiceValues: { true },
            labelPosition: "COLLAPSED",
            value: local!hearingSelected,
            saveInto: {
              local!hearingSelected,
              a!save(
                {
                  local!complianceSelected,
                  local!reminderSelected
                },
                null()
              )
            },
            required: false,
            choiceLayout: "COMPACT",
            choiceStyle: "CARDS"
          )
        }
      ),
      a!columnLayout(
        contents: {
          a!checkboxField(
            choiceLabels: { "Reminder Required" },
            choiceValues: { true },
            labelPosition: "COLLAPSED",
            value: local!reminderSelected,
            saveInto: {
              local!reminderSelected,
              a!save(
                {
                  local!complianceSelected,
                  local!hearingSelected
                },
                null()
              )
            },
            required: false,
            choiceLayout: "COMPACT",
            choiceStyle: "CARDS"
          )
        }
      ),
      a!columnLayout(
        contents: {
          a!checkboxField(
            choiceLabels: { "Compliance Required" },
            choiceValues: { true },
            labelPosition: "COLLAPSED",
            value: local!complianceSelected,
            saveInto: {
              local!complianceSelected,
              a!save(
                {
                  local!hearingSelected,
                  local!reminderSelected
                },
                null()
              )
            },
            required: false,
            choiceLayout: "COMPACT",
            choiceStyle: "CARDS"
          )
        }
      )
    }
  )
)

Try this!

Did you consider to use radio buttons? This is exactly what they are made for. From a UX perspective, building singular check boxes is misleading.