Is it possible to show alert message on the page or popup window, when user SHARE the document

[Will # _________ H]

Hi there,

The SharePoint version is On Premise. Is it possible to show alert message on the page or popup window, when user SHARE the document?

WILL

[#2]

Hi, the out-of-box feature does not support the alert message functionality. Maybe you can develop an SPFx extension for the library and then you can develop your own functionality of sharing and showing the alert message.

[#3]

Is there any document can be referred to?