Design install and browser modes
For a game product manager, this purchase confirmation prototype should make every player action and result the player can inspect easy to evaluate. Write how to show the exact item, Koin amount, balance impact, and explicit confirm/cancel actions. Define the player need, item scope, ownership rule, Koin price, and free path. Check age context, accessibility, rights, and platform expectations. Try the flow in a regular tab and an installed presentation. Navigation, focus, and recovery should remain understandable even when browser controls are reduced or the app resumes from suspension.
Treat offline state explicitly
An unavailable connection must not look like a completed purchase. Explain when the action cannot continue, preserve the game state, and provide a safe retry after connectivity returns.
Do not imply native entitlement
PWA installation does not create platform IAP ownership. Durable identity, cross-device state, refunds, billing integration, and app-store policy remain outside the browser prototype.
Write the decision before the feature
State which player problem the item addresses, why a purchase is appropriate, and what evidence would cause the team to drop the idea. The prototype supports a product decision; it does not forecast revenue.
Compare free and owned journeys
Ask testers to complete the same goal with and without the item. Look for comprehension, pressure, fairness, and delivered value rather than using purchase completion as the only measure of a good experience.
Set the release boundary
Review age context, accessibility, localization, rights, moderation, platform policy, refunds, support, and security with the responsible owners. Keep unverified native capabilities and financial reporting out of the public promise.
Repeat the complete choice
The confirmation should repeat the selected item, exact Koin amount, available Koin balance, remaining balance, and ownership rule without introducing a different offer. Test that behavior using PWA games. PWA packaging does not create native platform IAP entitlements.
Separate confirm from cancel
Use distinct actions with clear labels and enough spacing for the target input method. Returning to the game should never spend Koin. Test that behavior using PWA games. PWA packaging does not create native platform IAP entitlements.
Prevent repeated confirmation
After confirmation, show a pending state and disable repeated input until the result is known. A slow response should not create duplicate grants. Test that behavior using PWA games. PWA packaging does not create native platform IAP entitlements.