harden

Use harden when a page works with sample data but breaks with a long name, an empty result, or a failed request. Impeccable finds those gaps and adds the handling people need to keep going.

Try it

/impeccable harden the delivery-note form. Preserve the draft if saving fails and prevent duplicate submissions.

Start with a page or flow and the failures you’re concerned about. You can also name a specific need, such as long translations or read-only access.

How it works

Impeccable examines the failure cases and changes the interface to handle them:

• Text and data extremes: support long names, empty values, large numbers, and long lists without breaking the layout.
• Loading and errors: explain what is happening, preserve input, and offer recovery where the product supports it.
• Language and formatting: allow text expansion, right-to-left content, and appropriate date, number, and currency formats.
• Repeated or conflicting actions: handle double submissions, overlapping requests, and permission changes.
• Accessibility and fallbacks: keep controls reachable and state changes understandable across supported browsers and input methods.

Failed save: draft lost

Delivery noteAdd delivery instructionsCouldn’t save your note. Try again.Try again

Failed save: draft kept

Delivery notePlease deliver after 2 p.m.Couldn’t save your note. Try again.Try again

The fix depends on what people need to preserve. A long value may need to wrap or expand; shortening it is only useful if the full information remains accessible.

Check the result

Reproduce the problem: disconnect the network, submit twice, or use longer text. Check that input survives where it should, messages explain the next step, and keyboard users can recover too.

Use onboard for a broader first-use experience, optimize for slow interactions, or polish to refine the finished states.