Hello, may I please know how to put a popup confirmation on this code?

Code in plaintext:
Office365Outlook.SendEmailV2(ThisItem.MakerEmail,
"Your Loan Application has been approved!",
"Your Application with PO. No.: " & ThisItem.'PO. No.' & " has been approved!",
{Attachments:AddColumns(RenameColumns(AttachmentControl.Attachments,"Value", "ContentBytes"), "@odata.type", "")}
)