On-screen message (pre-save)

Hello all,

I have a question regarding pop-ups. We want to have a pop up in certain cases. For example when a value on the contact person equals a predefined value. This can be when creating a quote for example, when clicking the save button.

This would really help since we assume there are no validations within the quote create form itself before hitting the save button (pre-save)

It would be something like below and preferrably more explicit than a bell icon.

Hope something is available using functions etc.

Best regards,

Wesley