Amended Document with the same Series number or Resubmit document only Admin User.
Because now a day some invoices change with party understanding.
then we want to cancel and resubmit the invoice.
but ERPNext creates SI00105-1 for SI00105 is not accepted by GST Portal and Company.
So Solution wants to
If same
If possible when you delete the invoice then noted the invoice number.
After then you can set it via Document Naming Settings in Update Series Counter.