What is the deadline for implementing Strong Customer Authentication (SCA)?

The deadline for Strong Customer Authentication (<a href="/glossarycollection/strong-customer-authentication" style="color:#48277C;" target="_blank" title="Strong Customer Authentication">SCA</a>) based access to online payments accounts fell due on 14th March 2020. Due to the difficulties experienced in implementing SCA for e-Commerce, the European Banking Authority (<a href="/glossarycollection/european-banking-authority" style="color:#48277C;" target="_blank" title="European Banking Authority">EBA</a>) arrived at a view that migration plans of Payment Service Providers (<a href="/glossarycollection/payment-service-provider" style="color:#48277C;" target="_blank" title="Payment Service Provider">PSP</a>) should now be completed by 31 December 2020. In parallel, the UK's Financial Conduct Authority (<a href="/glossarycollection/financial-conduct-authority" style="color:#48277C;" target="_blank" title="Financial Conduct Authority">FCA</a>) announced an extension of their e-Commerce deadline until 14 March 2021.