Use when building or reviewing Arab/MENA payment or BNPL flows, including Paymob, FawryPay, Geidea, PayTabs, Tap Payments, MyFatoorah, HyperPay, Moyasar, Amazon Payment Services, EasyKash, Kashier, PaySky, Tabby, Tamara, valU, Souhoola, webhooks, signatures, redirects, captures, refunds, or payment secret boundaries.