What you should be able to do is send a Cloud attachment and then just what who views it on one drive https://support.microsoft.com/en-us/office/see-files-you-shared-in-onedrive-6b67b82b-9c5c-4348-ab10-fd5b0d8df76c
attachment openned event ID

liuwei@cesm
591
Reputation points
Hi,
I would like to send a testing message with attachment(or link) to monitor staff security awarness. when Staff click to open the attachment, I will get the message.
I like to setup group client to run schedule. which the trigger is the event ID. The ID is generated when the testing attachment is openned.
brgds
Liu Wei
Thanks joyceshen