In UI, for a submit button, if a confirmMessage text is set along with a validat

If you pass an empty value for the confirmMessage, it doesn't show the popup. Based on this, you can use the logic for your validations to either show a confirmation message or not. This will look something like:

a!buttonWidgetSubmit(
label: "Submit",
style: "PRIMARY",
confirmMessage: if(rule!<YOUR VALIDATION LOGIC>, "<YOUR CONFIRMATION MESSAGE>, {}),
saveInto: {}
)

You should be able to conditionally display the confirm message. For example -

confirmMessage: if(<validation successful expression>,"Are you sure?","")

Is there a way to use if-condition with validation group and confirmMessage please?

Hi Smrutis,
Please check below code snippet for confirmMessage, which checks the validations first and displays button's confirmMessage once all configured validations are satisfied. Here <<validationGroup>> must be same for the actual button and components to check.
confirmMessage: if(and(a!buttonWidgetSubmit(validationGroup:<<validationGroup>>).@attributes.@anyAttribute.validationGroups=<<validationGroup>>,<<Validation condtitions configured for the each component used in the form with same validationGroup>>),"",<<Your confirmaMessage>>)

This workaround might not be recommended but it works for your case. Please find attached sample SAIL form which is working fine with this work around.

Sample.txt

@smrutis Hi, to a considerable extent, the suggestions given by Tom Ryan and Abhi Jana here occupies upper hand in terms of solution to your problem. But what I would like to suggest from my experience is, these approaches literally causes the interface to render slowly which could be because of the complex validations we have in place. You might not observe the difference if you form consists of few components, but there could be significant impact when the form is much dynamic in nature and has complex validations, which thereby results in 'Working..' message for most of the times.