Do nothing if you sell your own stock through one marketplace and the payout reports reconcile cleanly. The Best Buy announcement is not a reason to replace a working setup.
Take one specific step if you sell across several channels: draw the payment and settlement flow for one order, including refunds and returns. Then check who owns each hand-off. If the answer changes between your own website, Amazon.ae and Noon, fix the reporting process before investing in a custom marketplace build.
This is also a reminder to treat marketplace expansion as an operating decision. Best Buy launched its marketplace to widen its assortment, but its sellers still carry responsibilities for shipping, product support and parts of the customer experience. More listings create more work unless the back office is designed to keep up.
Paknology has a commercial interest here. It provides UAE company formation and ecommerce launch services, including Amazon.ae and Noon onboarding, as well as ERP and automation. Business setup and trade licence work starts from AED 4,999 at the licence stage, while a business website starts from AED 899 per year. If you only need one marketplace account and can manage the listings and reconciliation yourself, the marketplace’s own tools or a simpler freelancer-led setup may be cheaper and more suitable. If you need several channels mapped into one operating process, business setup and ecommerce support is the relevant next step.