Alexa Account Linking: 5 Steps to Seamlessly Link Your Alexa Skill to User Systems That Require Authentication : Alexa Blogs
アプリ間アカウントリンク(開発者のアプリから開始する場合) | Alexa Skills Kit
GitHub - kennethchoe/alexa-web-check: Alexa skill with Account Linking using Login with Amazon (LWA) integration. Built ASP.NET custom web site to collect data for Alexa skill, which is stored in DynamoDB.
User Account Linking in Alexa with ASP.NET Web API | Okta Developer
Use App-to-App Account Linking and New Skill Activation API to Simplify Skill Setup : Alexa Blogs