Set page item value to show in DA confirm message

Question

I'm using Oracle Apex Version: 20.1

I have a page item (:P303_ADJUSTAMOUNT) that has a default value that's set via sql query. When the user presses the submit button, I have a DA confirm action that shows a popup window to confirm the amount the user is trying to adjust. This works if the user doesn't change the page item value after initialization, as the modal window displays the value that was retrieved from the sql query (the item's default value).

I created another DA on the page item itself to set the value of the page item on the "Lose Focus" event (Set Value --> PL/SQL). I want the DA to set the item's value to whatever the user has entered at the time. Yet when my confirmation message pops up, the page item is still set to the default value and the value I entered disappears. Where am I going wrong here?

Set Value Dynamic Action

Confirmation Message

Update on 04/26/2022:

I finally got my message to be able to display the page item's value and not the page item's session state value. But I have a feeling I'm doing a little extra work to get the desired result.

New code for dynamic action

Action: Execute JavaScript Code

Code:

var msg;
var amt;

msg = "Are you sure you want to insert a singleton for $"
amt = apex.item( "P303_ADJUSTAMOUNT" ).getValue();

apex.message.confirm(msg.concat(amt,"?"), function( okPressed ) { 
if( okPressed ) {
   apex.submit('ADJUST');
} 
});

Desired Result: Update Confirmation Message