While using a!recordActionItem() to open a pop-up, there is no close option which is by default by Appian to close the dialog box? What can be the solution?
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Add a button action to submit the interface or just add a cross icon using the richTextDisplayFIeld() and then add a submit link on it. Also, the default option to close will only be visible when you do not have a way to submit the form. So that means you must be having a button on the screen.