Understandable → Input Assistance → 3.3.4

3.3.4

Error Prevention (Legal, Financial, Data)

Level AAManual Testing Only

WCAG Requirement

For pages with legal/financial/data submissions: submissions are reversible, data is checked before submission, or user can review and confirm.

Experience Builder Notes

EB Edit widgets that modify feature layer data should include confirmation before submission.

Sufficient Techniques

  • ✓Add confirmation step before data submission
  • ✓Allow users to review entries before submitting

Common Failures in EB Apps

  • ✗Edit widget saving immediately without confirmation

Full specification: WCAG 2.1 — 3.3.4 Error Prevention (Legal, Financial, Data)

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