# Challenge

- [Challenge request](/has-for-wallets-pksa/challenge/challenge-request.md)
- [Feedback to user](/has-for-wallets-pksa/challenge/feedback-to-user.md)
- [Challenge approval](/has-for-wallets-pksa/challenge/challenge-approval.md)
- [Challenge refusal](/has-for-wallets-pksa/challenge/challenge-refusal.md)
- [Errors](/has-for-wallets-pksa/challenge/errors.md)