JUMP TOAPI ReferenceIntroductionAPI Key ScopesReturns ScopeOrders ScopeCarts ScopeDeveloper Tools ScopeError CodesPaginated RequestsWebhooksSetting Up WebhooksHMAC CalculationWebhooksReturn WebhookLabel WebhookRestocking WebhookReturns APIReturn DataAdvanced Shipping NoticegetDetailed Returns ListgetReturn DetailsgetReturn ActionsProcess ReturnpostFlag ReturnpostCancel ReturnpostClose ReturnpostRemove Line ItemspostCreate Return NotepostGet Return NotesgetListings APIBlocklistList Blocklist ItemsgetGet Blocklisted ItemsgetAdd Blocklist ItempostDelete Blocklist EntrydeleteAllowlistList Allowlisted ItemsgetGet Allowlist ItemgetAdd Allowlist ItempostDelete Allowlist EntrydeleteOrders APIDeep LinkGenerate Order LinkpostQR CodeGenerate QR CodepostCart API (On-Store)Getting Started With the Cart APICartCreate CartpostGet CartgetUpdate CartpostDelete CartdeleteComplete TransactionOn-Store SDKProgrammatic Webhooks APIGetting Started With the Programmatic Webhooks APIGet WebhooksgetCreate WebhookpostUpdate WebhookputDelete WebhookdeletePowered by Getting Started With the Programmatic Webhooks APIGet notified of important events in Loop by configuring webhook subscriptions via the API. Authentication This API requires API key authentication. The key must have the Developer Tools scope.