Square Developer Forums - Forums for asking about Square APIs and SDKs

Square Developer Forums

Topic	Replies	Views	Activity
Developer Support Consolidation Announcements Hi all - we wanted to provide an update. We’re consolidating developer support into a single channel. Starting May 1, our Developer Forums will be the central place for all questions and discussions and as part of this c…	1	811	July 12, 2026
Welcome to Square Developer Forums Site Feedback	9	13377	August 19, 2026
Does API hosted checkout prevent overselling the last item across online and POS? Questions	0	1	October 17, 2026
Square Production Webhooks Returning 401 — Signature Mismatch Questions	2	7	October 17, 2026
Questions about a custom availability calendar, overlapping bookings, and external reservation integration in Japan Questions	2	9	October 16, 2026
Terminal Canada Questions terminal-api	1	7	October 16, 2026
SpaOps: enable fixed recurring ACH in Sandbox Questions web-payments-sdk	0	3	October 16, 2026
Bitcoin payments and wallet APIs Feature Requests	3	114	October 16, 2026
Request: Payroll data and processing fees in the public API Feature Requests oauth-api	3	12	October 16, 2026
Third party integration Questions payments-api , web-payments-sdk	1	7	October 16, 2026
Google Content API vs Merchant API and possible impact on inventory data Questions	2	11	October 16, 2026
Production CreatePayment declined instantly (GENERIC_DECLINE ~65ms), same card approved in Virtual Terminal (AU) Questions	1	6	October 16, 2026
React 19.2.8 and react-square-web-payments-sdk@3.3.0 examples are not working MCP web-payments-sdk	2	12	October 16, 2026
Google Play DEX Optimization Requirements Conflict with Mobile Payments SDK Feature Requests	4	44	October 16, 2026
Square Sandbox Orders API – 403 FORBIDDEN despite correct location ID Questions	0	2	October 16, 2026
Production personal access token missing BANK_ACCOUNTS_WRITE for Bank Accounts API Questions	2	10	October 16, 2026
Access to Delivery Fulfilment Type on Development App Uncategorized orders-api	4	9	October 16, 2026
Sandbox CreateSubscription deactivates without invoice or reason — supported verification path? Questions	1	9	October 16, 2026
Allowlist request: Cursor for mcp.squareup.com dynamic client registration MCP	2	16	October 16, 2026
Orders-API - Webhook call on Orders from Restaurant Application Questions orders-api	3	823	October 16, 2026
Square Google Shopping Integration: Incorrect Variation Pricing and Inventory Sync Copy Questions inventory-api , catalog-api	0	5	October 15, 2026
Checkout API: definitive cancellation barrier and CreatePaymentLink idempotency retention Questions checkout-api	0	3	October 15, 2026
MFI Product Plan ID Questions in-app-payments-sdk , mobile-payments-sdk	8	65	October 15, 2026
Does completing an order in Square KDS update the Order fulfillment status via the Orders API? Questions	1	11	October 15, 2026
MCP Allowlist Request - Chat with Work MCP	0	1	October 15, 2026
Feature request: expose "Goods and services confirmation" in the Invoices API Feature Requests invoices-api , booking-api	2	17	October 15, 2026
Customer Orders Questions orders-api	3	16	October 15, 2026
Urgent Engineering Escalation Request: KDS Fulfillment Sync Bug / Orders Not Marking "Ready" (Ticket Open 6+ Months) Questions orders-api	1	11	October 15, 2026
Square SDK Payment Requests Fail Intermittently When Reusing the Same Payment Workflow in My Mobile Application Questions	1	9	October 15, 2026
Mobile Payments SDK (iOS) – developer in Slovakia: production authorization and testing with a physical reader Questions mobile-payments-sdk	1	10	October 15, 2026