eBay has announced a number of major changes coming for both buyers and sellers on its online marketplace, with a plan to phase out its 15-year-long partnership with PayPal and eventually integrate Amsterdam-based payments company Adyen as its “primary partner for payments processing globally”.

This will eventually affect all eBay customers on every version of the site, including desktop and its iOS and Android apps. The process will happen over a long period of time, beginning with payments intermediation on its marketplace — essentially helping sellers and buyers transition to Adyen — in the second half of 2018.

This will be a “small scale” initial expansion, and grow further throughout 2019. eBay currently has an operating agreement to keep PayPal as its primary payments processor through mid-2020, so the plan is to have “transitioned a majority” of its marketplace customers to Adyen by 2021.