Closing the dialog on success left the OK click completely silent — the user
had to go hunting the table for the new row to find out whether anything had
happened. A toast says so plainly and then gets out of the way.
It carries the useful part: invoice number, line count, billed total, how many
lines booked, and — the bit that actually needs action — the machine codes
that could not be matched, named rather than left for the user to infer from
the badge. Auto-dismisses after six seconds, dismissible by hand, and clears
when the dialog is reopened.
Announced via role=status / aria-live=polite rather than assertively: a
confirmation is not urgent and should not cut into whatever a screen reader
is currently saying.
No toast library — the app needs exactly one, and a dependency would carry
far more surface than that. Sits above the dialog's z-50, full-width on
mobile and bottom-right from sm up, with a 44px dismiss target.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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