I’m migrating my WHMCS Payment gateway installation from the legacy MIGS integration to Mastercard’s latest MPGS platform and need the payment module built accordingly. The finished gateway has to process standard credit and debit card transactions, all within the usual WHMCS checkout flow. The current MIGS module can serve as a reference, but I expect clean, well-commented code that follows WHMCS module conventions for tokenisation, recurring billing hooks, callback handling, and error logging. Once the MPGS API keys are added in the admin area, the module should: • Authorise, capture, void, and refund card payments. • Recognise and route Apple Pay and Google Wallet tokens seamlessly. • Display concise transaction responses in the WHMCS client area, invoices and admin order view. After development, I need a short deployment guide and your confirmation that test-mode and live-mode both run without warnings in WHMCS 8.x on PHP 8.1. A sandbox merchant account is available for end-to-end testing, and I’ll supply it as soon as we start. MPOGS gateway developer information guide - https://anzworldline.gateway.mastercard.com/api/documentation/integrationGuidelines/directPayment/integrationModelDirectPayment.html?locale=en_US We need this completed by March 1 you MUST have experience with WHMCS and payment gatways