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I am currently designing a payment flow for a mobile app. The flow is divided in 5 steps :

  1. Choose account
  2. Scan QR Code
  3. Enter amount + Memo
  4. Fees
  5. Review & send

While I was designing it, I told myself, what if the user wants to cancel everything and go back to the Dashboard. As of today, I have no Cancel button on my flow but go back buttons obviously.

What do you think about it ? Should I add a Cancel button, or I should let the user close the app and re-open it?

Thanks

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    What about a "Start Over" button? Closing an app and reopening can be dangerous to design for. – Alan Dec 21 '17 at 14:35
  • Thanks for your reply Alan. Finally, I added 2 buttons ( Cancel & Next in the Navigation view ). The main problem is that they can't go back to the previous step. This is also a bit confusing. Here's a before/after screenshot : imgur.com/a/TrQG5 – khalil Dec 22 '17 at 9:18
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Fundamental Usability Heuristic - "Support Undo and Redo"

Users often choose system functions by mistake and will need a clearly marked "emergency exit" to leave the unwanted state without having to go through an extended dialogue. Support undo and redo.

-- Nielsen Norman Group

https://www.nngroup.com/articles/ten-usability-heuristics/

Any user who wants to cancel out, for whatever reason, and discovers after looking around that the only option is to close and restart, will likely consider this a PITA and a bad experience.

Provide a simple 'Cancel' option in a secondary action area, out of reach of accidental taps.

  • I definitely agree with you. Please find a Before/After screenshot : imgur.com/a/TrQG5 – khalil Dec 22 '17 at 9:23

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