MX Merchant Release (May 24, 2026)
MX Merchant Release Notes
Production Release Date: May 24, 2026
Table of Contents
Features
FullStory Integration for Session Replay and Analytics
Integrated FullStory into MX Merchant to support session replay and product analytics while implementing privacy-first protections to safeguard sensitive user data.
Configured masking and exclusion rules using a private-by-default approach so that all application content is masked except approved navigation elements, ensuring captured session data aligns with PRTH privacy and compliance standards.
Visa Marketplace Identifier Support
Added support for Visa marketplace identification requirements by transmitting the marketplace_identifier in downstream MX Checkout API card-not-present Visa transactions routed through MXC-TSYS.
The enhancement safely excludes the identifier for non-Visa card brands and persists the marketplace identifier in the Vortex database under the merchant object to support compliance, transaction tracking, and marketplace processing requirements.
Enhancements
PMFP Merchant Boarding Fee Configuration Enhancements
Enhanced the PMFP merchant boarding workflow to append a PMFP-specific fee configuration object to the MXM UAR account feeConfig array during account creation and updates.
The implementation preserves all existing fee configurations for merchants while ensuring PMFP-enabled merchants receive the correctly formatted downstream fee configuration payload without affecting non-PMFP boarding flows.
Priority International Card Vaulting Improvements
Refactored the MX Merchant card vaulting workflow for Priority International merchants to automatically save vaulted cards in Stripe for future on-session and off-session payment processing.
The update introduces enhanced external processor vaulting logic across MX Database, Checkout API v3, and MX Merchant 6, including a new requirement that customers must have an email address before cards can be vaulted for Stripe-backed processing.
MX Merchant Password Reset and Account Management Updates
Enhanced the MX Merchant password reset experience by updating the self-service password flow to redirect users to the appropriate MX Merchant or white-label login page based on their operating context, ensuring the standard Forgot Password workflow and correct branded messaging are used.
Added feature-flag-controlled restrictions in Checkout API v3 to prevent users from updating their own password, email, or mobile number while preserving existing administrative user-management functionality.
Expanded FullStory Privacy Protections
Enhanced the MX Merchant FullStory integration with expanded privacy protections by masking or excluding sensitive fields such as passwords, payment inputs, PII, authentication data, and hidden fields from session capture.
Implemented a private-by-default configuration that masks all application text except approved navigation elements while preserving secure session replay and analytics functionality in compliance with PRTH privacy standards.
Contract Template Grid Performance Optimization
Improved performance for the Contract Template grid by adding a nonclustered index on Billing_Plan.TemplateId, eliminating costly full table scans that caused severe delays for merchants with large numbers of templates.
This optimization reduces Contract.Template_GetPaged execution times from up to 45 seconds to sub-second performance while maintaining existing recurring contract and MX6 UI functionality.
Bugs and Fixes
Priority International Receipt Tax Display Fix
Fixed an issue where receipts for Priority International merchants did not display tax amounts when tax data was provided only at the payment level and not within individual line items.
Updated the Checkout API v3 receipt payload logic to consistently include tax information whenever tax is present in the transaction, ensuring accurate receipt display and reporting.
Updated 10 days ago