Frappe.ui.FileUpload

Hello, I want upload at Excel document and I would like to be able to pass the errors that I control in the file (.py) stored in a list to view (.js)

The variable stores the errors correctly but I don’t know how to send this variable to FileUpload’s on_success and from there create custom error modals

You can format the errors and send them from your py Dialog API
Does this work?