Error codes and retry guidance
Explains the list of HTTP status codes and error codes the ReceiptRoller API returns, which cases to retry, and guidance on retry intervals.
Designing resends, ordering, and idempotency
Explains ReceiptRoller's Webhook resend policy, why delivery order is not guaranteed, implementing idempotency with event_id, handling dead letters, and common anti-patterns.
Monitoring and handling failures
Explains how to read the ReceiptRoller Webhook delivery history, the metrics to monitor and how to design alerts, redelivering dead letters, and common failure patterns and recovery procedures.
Rate limiting and throttling
Explains the unit of rate limiting for the ReceiptRoller API, the per-plan limits, how to read the response headers, and implementation patterns to avoid hitting 429.
Developer Help Index
The index of ReceiptRoller developer help. Covers the developer application, app registration, OAuth authentication and scopes, implementation guides (wallet apps, store-facing Webhooks, the Survey API), guides by data domain, operations and security, the community, and troubleshooting.
Webhook is not being delivered
How to isolate the cause when a Webhook does not reach your receiving endpoint. Walks through checking, in order, the endpoint settings, subscribed events, reachability, signature-verification failures, and firewalls.
Webhook overview
Explains the main event types delivered by ReceiptRoller Webhooks, why to use Webhooks instead of polling, the delivery format (HTTPS POST + JSON), and how to think about delivery guarantees.
Using the Inventory / WMS API
An implementation guide for ReceiptRoller's Inventory / WMS API. Explains how to read and adjust stock per location and retrieve movement history, the required OAuth scopes, automatic mirroring when Shopify is connected, and how to use it from MCP tools (wms_get_stock / wms_adjust_stock, etc.).
SNS Webhook bypass (forwarding Webhooks from external SNS such as LINE)
Explains the mechanism, setup, signature handling, and cautions of the "SNS Webhook bypass" feature, which forwards Webhooks ReceiptRoller receives from SNS platforms such as LINE to a developer app, with the store's consent.
Obtaining and refreshing an access token
Explains how to obtain the access token and refresh token used with the ReceiptRoller API, their expiry, the refresh procedure, and what to do on errors.
The basics of requests and responses (JSON)
Explains the request format, required headers, response structure, pagination, filtering, and date/time format rules of the ReceiptRoller API.
Endpoints and versioning
Explains the base URL of the ReceiptRoller API, the versioning policy, the deprecation-notice flow, and how to check the current version.
How to register a Webhook
Explains how to register a Webhook endpoint in the ReceiptRoller developer portal, how to choose subscribed events, test delivery, using multiple endpoints, and how to delete or pause an endpoint.
Using the in-store media display API (Display API)
An overview of ReceiptRoller's in-store Android display API (/api/v1/displays/*) and the steps for pairing, heartbeat, playlist retrieval, and impression reporting. An introductory guide for building an app that plays a media loop on an Android kiosk or in-store signage device.
Signature verification and security
Explains how ReceiptRoller Webhook HMAC-SHA256 signature verification works, sample verification code (Node.js / Python / C#), replay-attack countermeasures, and how to manage secrets safely.