I followed B2C setup guidance from:
https://docs.microsoft.com/en-us/powerapps/maker/portals/configure/configure-openid-settings
https://readyxrm.blog/2019/07/24/configure-azure-ad-b2c-for-powerapps-portals/
In Chrome browser, I see an HTTP Error 401 after hitting the sign in button
URL: https://lgps01.powerappsportals.com/Account/Login/ExternalLogin?returnUrl=%2F&provider=https%3A%2F%2Falluviatechb2c.b2clogin.com%2Ftfp%2FAlluviaTechB2C.onmicrosoft.com%2FB2C_1_signupsigninportal%2Fv2.0%2F
After enabling diagnostic logging, I discovered the following message:
RequestData:, RequestPath:, RequestExtension:, SessionId:, UserId:, CorrelationId:00000000-0000-0000-0000-000000000000, Elapsed:0, RequestMethod:, RequestContentType:, RequestAccept:, RequestCacheControl:, UserAgent:, HandlerName:, HandlerExecuted:False, VaryByCustom:, MemberName:OnSubscriptionErrorAsync, SourceFilePath:G:\Agents\BA1256\_wap\143\s\Framework\Adxstudio.Xrm\AspNet\PortalBus\AppDataPortalBusProvider.cs, SourceLineNumber:150, ExceptionMessage:Access is denied
I tried searching the internet, but have not been able to uncover any clues for next steps. Can anyone help?