# Latest **URL:** https://developer.squareup.com/forums/latest.md [Latest](https://developer.squareup.com/forums/latest.md) · [Categories](https://developer.squareup.com/forums/categories.md) · [Tags](https://developer.squareup.com/forums/tags.md) --- ## [Developer Support Consolidation](https://developer.squareup.com/forums/t/developer-support-consolidation/25807)
**Author:** [@josh-square](https://developer.squareup.com/forums/u/josh-square)\ **Replies:** 1\ **Last updated:** [July 12, 2026, 10:21am UTC](https://developer.squareup.com/forums/t/developer-support-consolidation/25807 "2026-07-12T10:21:19Z")
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… --- ## [Welcome to Square Developer Forums](https://developer.squareup.com/forums/t/welcome-to-square-developer-forums/7)
**Author:** [@system](https://developer.squareup.com/forums/u/system)\ **Replies:** 10\ **Last updated:** [October 21, 2026, 2:18pm UTC](https://developer.squareup.com/forums/t/welcome-to-square-developer-forums/7 "2026-10-21T14:18:14Z")
Welcome to the Square Developer Forum! We wanted to create a space for our community to share what they know and learn from others as they build on top of the Square Developer platform. While we’re not trying to fence an… --- ## [Google Content API vs Merchant API and possible impact on inventory data](https://developer.squareup.com/forums/t/google-content-api-vs-merchant-api-and-possible-impact-on-inventory-data/28192)
**Author:** [@SOSequoyah](https://developer.squareup.com/forums/u/SOSequoyah)\ **Replies:** 5\ **Last updated:** [October 21, 2026, 10:04pm UTC](https://developer.squareup.com/forums/t/google-content-api-vs-merchant-api-and-possible-impact-on-inventory-data/28192 "2026-10-21T22:04:54Z")
Hello. I am experiencing an issue with pushing inventory levels to Google. I have inventory tracking enabled, inventory level listed, and Google Local enabled on each item. Google Merchant Center shows over 2.3k items mi… --- ## [Square Production Webhooks Returning 401 — Signature Mismatch](https://developer.squareup.com/forums/t/square-production-webhooks-returning-401-signature-mismatch/28223)
**Author:** [@Loo](https://developer.squareup.com/forums/u/Loo)\ **Replies:** 5\ **Last updated:** [October 21, 2026, 8:40pm UTC](https://developer.squareup.com/forums/t/square-production-webhooks-returning-401-signature-mismatch/28223 "2026-10-21T20:40:30Z")
All our Square Production webhooks return 401, including real payments, refunds, and test events. We’ve verified the signing key, notification URL, raw request body, and HMAC-SHA256 implementation. Everything appears co… --- ## [CustomAttributeValues Key issue (C# SDK 45.0.1)](https://developer.squareup.com/forums/t/customattributevalues-key-issue-c-sdk-45-0-1/28130)
**Author:** [@cbstl](https://developer.squareup.com/forums/u/cbstl)\ **Replies:** 5\ **Last updated:** [October 21, 2026, 8:31pm UTC](https://developer.squareup.com/forums/t/customattributevalues-key-issue-c-sdk-45-0-1/28130 "2026-10-21T20:31:03Z")
I’m finally updating my C# web app that uses the Square API from SDK v40.1.0 (just before the significant breaking-changes SDK overhaul) to 45.0.1 and I’m running into an issue with the Key for CustomAttributeValues work… --- ## [Sandbox: canceling PENDING subscription schedules cancellation one day after future start](https://developer.squareup.com/forums/t/sandbox-canceling-pending-subscription-schedules-cancellation-one-day-after-future-start/28246)
**Author:** [@ESU](https://developer.squareup.com/forums/u/ESU)\ **Replies:** 2\ **Last updated:** [October 21, 2026, 7:28pm UTC](https://developer.squareup.com/forums/t/sandbox-canceling-pending-subscription-schedules-cancellation-one-day-after-future-start/28246 "2026-10-21T19:28:02Z")
Subscription ID: a45bdfae-a7eb-4941-ab24-82c784641689 Timezone: America/Chicago Future start: November 18, 2026 Cancellation requested: October 17, while PENDING CancelSubscription returned cancellation date November 19 … --- ## [MCP Allowlist Request - ContextPlus](https://developer.squareup.com/forums/t/mcp-allowlist-request-contextplus/28288)
**Author:** [@Gian](https://developer.squareup.com/forums/u/Gian)\ **Replies:** 0\ **Last updated:** [October 21, 2026, 7:11pm UTC](https://developer.squareup.com/forums/t/mcp-allowlist-request-contextplus/28288 "2026-10-21T19:11:48Z")
Hi there! Gian here. ContextPlus is an Agent building platform and we’re expanding our suite of MCP connections to include Square as some of our customers are very enthusiastic about the Square set of services and featu… --- ## [iOS In-App Payments SDK 1.6.7: 3DS challenges fail with buyer\_verification\_unexpected since Oct 17, 2026 (three-ds-authentication returns 400)](https://developer.squareup.com/forums/t/ios-in-app-payments-sdk-1-6-7-3ds-challenges-fail-with-buyer-verification-unexpected-since-oct-17-2026-three-ds-authentication-returns-400/28260)
**Author:** [@n000r111](https://developer.squareup.com/forums/u/n000r111)\ **Replies:** 1\ **Last updated:** [October 21, 2026, 6:52pm UTC](https://developer.squareup.com/forums/t/ios-in-app-payments-sdk-1-6-7-3ds-challenges-fail-with-buyer-verification-unexpected-since-oct-17-2026-three-ds-authentication-returns-400/28260 "2026-10-21T18:52:55Z")
Hi Square team, Since around 2026-10-17 07:16 UTC, card-on-file registration with 3DS has been failing on iOS for most cards that require a challenge. We’d like help finding out why Square rejects these verifications. E… --- ## [Access to first party delivery via API](https://developer.squareup.com/forums/t/access-to-first-party-delivery-via-api/28265)
**Author:** [@goodlazy](https://developer.squareup.com/forums/u/goodlazy)\ **Replies:** 1\ **Last updated:** [October 21, 2026, 6:19pm UTC](https://developer.squareup.com/forums/t/access-to-first-party-delivery-via-api/28265 "2026-10-21T18:19:31Z")
Hello, my understanding is that by default, first party delivery is not available in the API. Can I get enrolled to gain access? Profile is Good Lazy. --- ## [Sandbox subscription checkout, renewal failure, and recovery verification](https://developer.squareup.com/forums/t/sandbox-subscription-checkout-renewal-failure-and-recovery-verification/28244)
**Author:** [@Symmetry](https://developer.squareup.com/forums/u/Symmetry)\ **Replies:** 1\ **Last updated:** [October 21, 2026, 6:07pm UTC](https://developer.squareup.com/forums/t/sandbox-subscription-checkout-renewal-failure-and-recovery-verification/28244 "2026-10-21T18:07:23Z")
We need help completing pre-launch verification for a US/USD subscription integration using Square API version 2026-09-16. Verified: • Sandbox $20 activation and $5 checkout payments map correctly to our test account. … --- ## [Feature request: Estimates API (create and convert estimates programmatically)](https://developer.squareup.com/forums/t/feature-request-estimates-api-create-and-convert-estimates-programmatically/28251)
**Author:** [@BEEJAYS](https://developer.squareup.com/forums/u/BEEJAYS)\ **Replies:** 1\ **Last updated:** [October 21, 2026, 5:57pm UTC](https://developer.squareup.com/forums/t/feature-request-estimates-api-create-and-convert-estimates-programmatically/28251 "2026-10-21T17:57:03Z")
Hello Square team, We’re Beejays Tile & More, a general contractor and Square seller (account beejaysremodel@gmail.com). We send estimates to clients and convert accepted estimates to invoices, and we’d like to do that … --- ## [Help with Integration from Square to wordPress Website for On-Line Shop](https://developer.squareup.com/forums/t/help-with-integration-from-square-to-wordpress-website-for-on-line-shop/28283)
**Author:** [@sweetsandtreatsbath](https://developer.squareup.com/forums/u/sweetsandtreatsbath)\ **Replies:** 3\ **Last updated:** [October 21, 2026, 5:52pm UTC](https://developer.squareup.com/forums/t/help-with-integration-from-square-to-wordpress-website-for-on-line-shop/28283 "2026-10-21T17:52:26Z")
Hi. I have a traditional sweet shop, which sells sweets pre-packaged and by weight, as well as hot drinks and Freak Shakes. My website guy, who is currently trying to set up my on-line shop (he uses WordPress) has emaile… --- ## [Payments API policy and authorization requirements](https://developer.squareup.com/forums/t/payments-api-policy-and-authorization-requirements/28255)
**Author:** [@Donna-SweetServ](https://developer.squareup.com/forums/u/Donna-SweetServ)\ **Replies:** 2\ **Last updated:** [October 21, 2026, 5:12pm UTC](https://developer.squareup.com/forums/t/payments-api-policy-and-authorization-requirements/28255 "2026-10-21T17:12:08Z")
Hello Square Developer Support, Where can developers find the current US requirements for permitted use cases, saved-card authorization, seller-initiated payments, customer notices and record retention? We also need a … --- ## [Missing Order Ready / Prepared status updates from Square after orders are completed](https://developer.squareup.com/forums/t/missing-order-ready-prepared-status-updates-from-square-after-orders-are-completed/28285)
**Author:** [@mariammansour04](https://developer.squareup.com/forums/u/mariammansour04)\ **Replies:** 1\ **Last updated:** [October 21, 2026, 5:06pm UTC](https://developer.squareup.com/forums/t/missing-order-ready-prepared-status-updates-from-square-after-orders-are-completed/28285 "2026-10-21T17:06:05Z")
Hi Square Developer Community, We are investigating an order-status synchronization issue with our Square integration (Grubtech) and would appreciate some guidance. Orders are being created and sent successfully to Squ… --- ## [Enable RECURRING\_CHARGE (bank on file ACH) for our application - sandbox and production](https://developer.squareup.com/forums/t/enable-recurring-charge-bank-on-file-ach-for-our-application-sandbox-and-production/28261)
**Author:** [@aconidi](https://developer.squareup.com/forums/u/aconidi)\ **Replies:** 3\ **Last updated:** [October 21, 2026, 3:45pm UTC](https://developer.squareup.com/forums/t/enable-recurring-charge-bank-on-file-ach-for-our-application-sandbox-and-production/28261 "2026-10-21T15:45:42Z")
Hello Square team, We bill our accounting firm’s monthly clients through our own app using the Web Payments SDK and the Payments API (application ID sq0idp-\_8Vvu4UodXDWlDX4a3J5jA). We’d like clients to save a bank accou… --- ## [Stand MFi Approval Form — no response after 5+ weeks](https://developer.squareup.com/forums/t/stand-mfi-approval-form-no-response-after-5-weeks/27981)
**Author:** [@Nbarrie](https://developer.squareup.com/forums/u/Nbarrie)\ **Replies:** 20\ **Last updated:** [October 21, 2026, 3:39pm UTC](https://developer.squareup.com/forums/t/stand-mfi-approval-form-no-response-after-5-weeks/27981 "2026-10-21T15:39:53Z")
Hi all, I submitted the Square Mobile Payments SDK – Stand MFi Approval Form on 14 August 2026 for my app and still haven’t had any confirmation or update. App name: BlydePOS Bundle identifier: com.blyde.BlydePOS App… --- ## [Japan Appointments Free: buyer-level API confirmation, hidden services, edit restrictions, and shared capacity](https://developer.squareup.com/forums/t/japan-appointments-free-buyer-level-api-confirmation-hidden-services-edit-restrictions-and-shared-capacity/28258)
**Author:** [@thegym](https://developer.squareup.com/forums/u/thegym)\ **Replies:** 1\ **Last updated:** [October 21, 2026, 3:33pm UTC](https://developer.squareup.com/forums/t/japan-appointments-free-buyer-level-api-confirmation-hidden-services-edit-restrictions-and-shared-capacity/28258 "2026-10-21T15:33:38Z")
We are evaluating Square as the shared booking system for a gym in Japan. General customers must keep using the existing Square booking site. Corporate members would use a LINE interface for booking, rescheduling, cancel… --- ## [Supported way to open an externally created unpaid order on Square Register S252/S251?](https://developer.squareup.com/forums/t/supported-way-to-open-an-externally-created-unpaid-order-on-square-register-s252-s251/28269)
**Author:** [@npetrillo81](https://developer.squareup.com/forums/u/npetrillo81)\ **Replies:** 1\ **Last updated:** [October 21, 2026, 2:43am UTC](https://developer.squareup.com/forums/t/supported-way-to-open-an-externally-created-unpaid-order-on-square-register-s252-s251/28269 "2026-10-21T02:43:19Z")
We are integrating a custom iPad front desk application with our existing second-generation Square Register (S252) and original USB-connected customer display/card reader (S251). Our requirement is for staff to build a c… --- ## [Customer-saved purchase data after a seller revokes access, and AI use](https://developer.squareup.com/forums/t/customer-saved-purchase-data-after-a-seller-revokes-access-and-ai-use/28281)
**Author:** [@receipthouse](https://developer.squareup.com/forums/u/receipthouse)\ **Replies:** 0\ **Last updated:** [October 21, 2026, 2:14am UTC](https://developer.squareup.com/forums/t/customer-saved-purchase-data-after-a-seller-revokes-access-and-ai-use/28281 "2026-10-21T02:14:23Z")
I’m building ReceiptHouse, a read-only integration where a Square seller authorizes access, and their customers separately opt in to save their own purchases to a personal ReceiptHouse account (for receipts, warranties, … --- ## [MCP Allowlist Request - Base44](https://developer.squareup.com/forums/t/mcp-allowlist-request-base44/28280)
**Author:** [@Connectorsbase44](https://developer.squareup.com/forums/u/Connectorsbase44)\ **Replies:** 1\ **Last updated:** [October 21, 2026, 1:21am UTC](https://developer.squareup.com/forums/t/mcp-allowlist-request-base44/28280 "2026-10-21T01:21:58Z")
Hi Square team, Here from Base44, an AI app and agent builder. We’d love to let our users connect their Square accounts to our agents through your hosted MCP server (mcp.squareup.com), and we understand MCP clients need… --- ## [Web Payments SDK — ACH RECURRING\_CHARGE always returns UnexpectedError (sandbox)](https://developer.squareup.com/forums/t/web-payments-sdk-ach-recurring-charge-always-returns-unexpectederror-sandbox/27983)
**Author:** [@devagenttech](https://developer.squareup.com/forums/u/devagenttech)\ **Replies:** 7\ **Last updated:** [October 21, 2026, 12:53am UTC](https://developer.squareup.com/forums/t/web-payments-sdk-ach-recurring-charge-always-returns-unexpectederror-sandbox/27983 "2026-10-21T00:53:45Z")
We’re adding recurring ACH (bank on file) with the Web Payments SDK in sandbox. Every RECURRING\_CHARGE tokenization fails with UnexpectedError (“An unexpected error occurred while authorizing the payment.”). event.detail… --- ## [Struggling with authentication](https://developer.squareup.com/forums/t/struggling-with-authentication/28253)
**Author:** [@gnurph69](https://developer.squareup.com/forums/u/gnurph69)\ **Replies:** 5\ **Last updated:** [October 20, 2026, 10:42pm UTC](https://developer.squareup.com/forums/t/struggling-with-authentication/28253 "2026-10-20T22:42:30Z")
Hi there - I’m just trying to be able to retreive data from Square sales, and, of course, there are no transactions in a sandbox (that I know of), and I really don’t want to try and figure out how to create them because … --- ## [Mobile Payments SDK 2.6.1 (Android): main thread blocked ~7s causing ANRs and Tap to Pay being unavailable](https://developer.squareup.com/forums/t/mobile-payments-sdk-2-6-1-android-main-thread-blocked-7s-causing-anrs-and-tap-to-pay-being-unavailable/28275)
**Author:** [@wcense](https://developer.squareup.com/forums/u/wcense)\ **Replies:** 2\ **Last updated:** [October 20, 2026, 7:16pm UTC](https://developer.squareup.com/forums/t/mobile-payments-sdk-2-6-1-android-main-thread-blocked-7s-causing-anrs-and-tap-to-pay-being-unavailable/28275 "2026-10-20T19:16:12Z")
The Mobile Payments SDK’s reader startup is blocking our Android app’s main thread for about 7 seconds. It’s our most common ANR in Google Play Console, which puts us well above Play’s 0.47% bad-behaviour threshold. We … --- ## [Production CreatePayment declined instantly (GENERIC\_DECLINE ~65ms), same card approved in Virtual Terminal (AU)](https://developer.squareup.com/forums/t/production-createpayment-declined-instantly-generic-decline-65ms-same-card-approved-in-virtual-terminal-au/28234)
**Author:** [@Zalam01](https://developer.squareup.com/forums/u/Zalam01)\ **Replies:** 4\ **Last updated:** [October 20, 2026, 6:16pm UTC](https://developer.squareup.com/forums/t/production-createpayment-declined-instantly-generic-decline-65ms-same-card-approved-in-virtual-terminal-au/28234 "2026-10-20T18:16:58Z")
Hi Square team, We’re an Australian coach business. We built our own booking system using the Web Payments SDK (card form) + Payments API CreatePayment, with our own production application on our own seller account (per… --- ## [Why do SQUARE TEAM keep delivery wrong data to his customers?](https://developer.squareup.com/forums/t/why-do-square-team-keep-delivery-wrong-data-to-his-customers/28262)
**Author:** [@profficv](https://developer.squareup.com/forums/u/profficv)\ **Replies:** 4\ **Last updated:** [October 20, 2026, 6:16pm UTC](https://developer.squareup.com/forums/t/why-do-square-team-keep-delivery-wrong-data-to-his-customers/28262 "2026-10-20T18:16:51Z")
Hi all! I really do not understand why do SQUARE TEAM delivery wrong data to developers when using API. Its not acceptable to pay 50 dollars monthly and the information are deliberated wrong, regarding orders info when… --- ## [Request Discount Codes API access for UK custom checkout — Oakwood](https://developer.squareup.com/forums/t/request-discount-codes-api-access-for-uk-custom-checkout-oakwood/28271)
**Author:** [@billsaville](https://developer.squareup.com/forums/u/billsaville)\ **Replies:** 1\ **Last updated:** [October 20, 2026, 6:01pm UTC](https://developer.squareup.com/forums/t/request-discount-codes-api-access-for-uk-custom-checkout-oakwood/28271 "2026-10-20T18:01:56Z")
Hello Square Developer team, We would like to request supported Discount Codes API access for Oakwood, a UK/GBP leisure business, so staff can manage codes in Square Dashboard and customers can use them in our custom ch… --- ## [Buyer-level CreateBooking in Sandbox returning 403](https://developer.squareup.com/forums/t/buyer-level-createbooking-in-sandbox-returning-403/28266)
**Author:** [@tanjunkie](https://developer.squareup.com/forums/u/tanjunkie)\ **Replies:** 1\ **Last updated:** [October 20, 2026, 6:00pm UTC](https://developer.squareup.com/forums/t/buyer-level-createbooking-in-sandbox-returning-403/28266 "2026-10-20T18:00:12Z")
I’m building an iOS appointment-booking app using Square’s Bookings API. My Default Test Account has online booking enabled at the location level. However, CreateBooking using the full-access Sandbox token returns: 403… --- ## [Square Google Free Local Product Listings: repeated Merchant Center API errors](https://developer.squareup.com/forums/t/square-google-free-local-product-listings-repeated-merchant-center-api-errors/27509)
**Author:** [@linkbrazilmiami](https://developer.squareup.com/forums/u/linkbrazilmiami)\ **Replies:** 5\ **Last updated:** [October 20, 2026, 5:33pm UTC](https://developer.squareup.com/forums/t/square-google-free-local-product-listings-repeated-merchant-center-api-errors/27509 "2026-10-20T17:33:00Z")
Hello Square team, We are a retailer using Square’s built-in Google Free Local Product Listings, configured through Square Dashboard. We have not built a custom application or Square API integration. Square Support dire… --- ## [Tap to Pay on Android via Mobile Payments SDK: 0 readers in production (UK seller)](https://developer.squareup.com/forums/t/tap-to-pay-on-android-via-mobile-payments-sdk-0-readers-in-production-uk-seller/28248)
**Author:** [@alexscox](https://developer.squareup.com/forums/u/alexscox)\ **Replies:** 5\ **Last updated:** [October 20, 2026, 4:09pm UTC](https://developer.squareup.com/forums/t/tap-to-pay-on-android-via-mobile-payments-sdk-0-readers-in-production-uk-seller/28248 "2026-10-20T16:09:57Z")
Our app uses the Mobile Payments SDK via mobile-payments-sdk-react-native 2026.4.1 (Android SDK 2.5.0). Production application ID sq0idp-zHovL9\_tj7TYCvWZYvmtQQ, package co.uk.groomslot.app, Android signature registered o… --- ## [Revoke diagnostic app OAuth access without affecting my ERP](https://developer.squareup.com/forums/t/revoke-diagnostic-app-oauth-access-without-affecting-my-erp/28270)
**Author:** [@jfeich](https://developer.squareup.com/forums/u/jfeich)\ **Replies:** 0\ **Last updated:** [October 20, 2026, 2:55pm UTC](https://developer.squareup.com/forums/t/revoke-diagnostic-app-oauth-access-without-affecting-my-erp/28270 "2026-10-20T14:55:14Z")
Hello Square team, I need to revoke the OAuth authorization for a diagnostic application I created, without affecting my separate ERP application. The Dashboard refuses disconnection because this is a custom app create… [Next page](https://developer.squareup.com/forums/latest.md?page=1)