How do I enable two warnings for missed questions in a survey?

Hi @rchinjr ,

You can follow below steps to achieve the same:
So , to achieve this you have to create a  text type question and sets it default value to 2 and make it auto advance on load:
 

Then create an embedded data count and sets it value to 0.

Now on question on which you want to achieve above validation add below JS code:
 

Qualtrics.SurveyEngine.addOnload(function()
{
	/*Place your JavaScript here to run when the page loads*/

});

Qualtrics.SurveyEngine.addOnReady(function()
{
	/*Place your JavaScript here to run when the page is fully displayed*/
let nextButton = document.getElementById('NextButton');


    nextButton.addEventListener("click", function()
    {

        let count = parseInt(Qualtrics.SurveyEngine.getEmbeddedData('count'));


        count += 1;


        Qualtrics.SurveyEngine.setEmbeddedData('count', count);


        console.log('Count value: ' + count);



    });
});

Qualtrics.SurveyEngine.addOnUnload(function()
{
	/*Place your JavaScript here to run when the page is unloaded*/

});

And below validation logic in on question you have applied JS:
 

Hope this resolves your query😊!!

There are some great answers above, but since it's only one question, I would go with something simpler. 

Ask the same question twice, let's call them A and B, both with request response. B should come right after A with a page break in between. Add display logic to B, it should only be shown if A is unanswered.

Now you've got two prompts.