Before finalizing consent, show users a clear summary of exactly what they're agreeing to share (and NOT share).
Design Guidelines
Present a pre-submission confirmation screen that explicitly summarizes user choices using clear positive and negative framing: "You're sharing: Account data, Usage analytics" paired with "You're NOT sharing: Location, Browsing history, Third-party data."
Provide an "Edit My Choices" option that allows users to return and modify selections before final commitment.
Show any consequences of their choices, such as "Some features may be limited with these settings," so users understand trade-offs.
Eliminate all ambiguity about what will happen when users click "Confirm," ensuring the interface clearly communicates the action's permanence and scope.
Do's and Don'ts
Don’t
Submit choices immediately without review opportunity
Use vague confirmations: "Your preferences have been saved"
Provide no way to edit preferences after viewing summary
Hide or obscure the consequences of limited permissions
Do
Show "Review Your Choices" screen before final submission
Display explicit lists: "Sharing: X, Y / NOT sharing: A, B, C"
Include clear "Edit My Choices" button before final confirmation
State trade-offs: "Declining analytics means we can't personalize recommendations"
Research Foundation
Users experienced post-action uncertainty about whether their customizations were correctly saved. One participant described lingering doubt:
"I'm probably influenced by mental models dealing with terms and privacy policies in the past" (P09).
Another expressed hesitation:
"I was tempted to click on 'Accept All' button though I did not accept all" (P07).
revealing uncertainty about what would actually be submitted. Without explicit confirmation, users second-guessed whether the interface honored their intentions. This aligns with Norman's (2013) design principle of feedback where systems must clearly communicate the results of user actions to prevent errors and build confidence.