Is there a way to track the changes to attachements to a record? I need to know if a Purchase Requisition had an attachement and then it was removed

Maybe when the record have an attachement , your custom field called Attachement is Yes Then if you create a transaction search with criteria like custom field is yes and file..name is empty then you can be sur that an attachement was removed Or maybe check the system note of this custom field if the value change

I actually have experience with this precisely. NetSuite doesn't trigger anything (system notes or scripting wise) with an attachment add or remove at the transaction level. It's a really odd scenario.

Yes but with UE after submit you can populate custom field with value if we have attachement Then if user delete the file you can check in system note if the value change in your custom field

Yep- that would work. That is a bit how I worked around it. Simply being able to tell if an attachment existed in Old Context versus New Context. Or simply new context with your checkbox.