This query is for Finance Managers, Financial Controllers, CFOs, and senior AR/AP leaders who have adopted or are preparing for e-invoicing. As e-invoicing becomes a regulatory requirement in more markets, many businesses discover that the biggest challenges are operational rather than technical. How has your organisation approached e-invoicing adoption or preparation, and what have been the most significant hurdles you encountered along the way? Your response should touch on at least one of the following: 1. A practical challenge you faced when introducing structured or digital invoicing 2. A change you had to make to AR, AP, or finance workflows to support e-invoicing 3. A benefit or improvement you did not expect at the outset