Prototype the journey before Blueprints
For a technical producer, this inventory delivery prototype should make every player action and result shown in the game easy to evaluate. Write how to connect successful purchase to a visible owned or quantity state. Map preview, confirmation, a cancelled choice, a Koin shortage, pending, success, delivery, owned, and reload. Give every failure a safe next action. Use the browser build to settle the offer moment, information order, and recovery behavior before assigning Unreal UI, gameplay state, service, and platform-commerce work.
Separate concept from provider setup
List ownership, persistence, online services, native commerce providers, refunds, security, and certification as independent tasks. This page does not configure an Unreal purchasing integration.
Create engine expected scenarios
Carry the exact player-visible paths into later Unreal testing: decline, insufficient Koin, pending, interrupted delivery, owned state, and reopen. Verify one result across UI and gameplay state.
Name every state and owner
Separate preview, confirmation, pending, success, delivery, owned, insufficient Koin, cancel, interrupted, and reopened states. Assign later production work for identity, persistence, native billing, security, refunds, policy, and monitoring.
Define idempotent recovery
Repeated confirmation, a slow response, navigation during delivery, and reopening must resolve to one result. Record which state is authoritative and how the player can safely retry without another grant or Koin deduction.
Turn the prototype into tickets
Capture the visible behavior first, then create implementation tasks with expected examples for each transition and platform boundary. Do not translate a working browser interaction into an unsupported claim that backend commerce is complete.
Connect success to the item
A success message is not delivery. Place the cosmetic, consumable, unlock, or upgrade in the screen where the player expects to use it. Test that behavior using Unreal prototype teams. SEELE does not claim to configure native Unreal commerce providers from this page.
Show ownership and quantity
Use owned, equipped, unlocked, or remaining quantity as appropriate. The state should match the promise made on the offer card. Test that behavior using Unreal prototype teams. SEELE does not claim to configure native Unreal commerce providers from this page.
Verify delivery after reload
Reload the prototype and return to inventory. The item should remain visible without subtracting Koin or granting a second copy. Test that behavior using Unreal prototype teams. SEELE does not claim to configure native Unreal commerce providers from this page.