We have SharePoint Farm, the logins are provided by ADFS 3.0, on ADFS one of Identity provider is Azure ACS, the Azure ACS has been retired, now we need connect Azure AD B2C with ADFS to provide Social accounts authentications.
Where we can find metadata file for SAML or WS-Fed in Azure AD B2C connect to ADFS or alternatives to do the connection.
Social Accounts -> Azue AD B2C -> ADFS -> SP2016
Pedro,