Before this commit, users were required to compute the API URLs, which is specific to each Adyen account, themselves. After this commit, users will be able to copy their account prefix from Adyen to automatically generate the API URLs. task-3338126 closes odoo/odoo#126831 Related: odoo/upgrade#4876 Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>