TP_SA_InputClaims_PrepopulateSignInName.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<TrustFrameworkPolicy xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.microsoft.com/online/cpim/schemas/2013/06" PolicySchemaVersion="0.3.0.0"
  TenantId="yourtenant.onmicrosoft.com"
  PolicyId="B2C_1A_TP_SA_InputClaims_PrepopulateSignInName"
  PublicPolicyUri="http://yourtenant.onmicrosoft.com/B2C_1A_TP_SA_InputClaims_PrepopulateSignInName">

  <BasePolicy>
    <TenantId>yourtenant.onmicrosoft.com</TenantId>
    <PolicyId>B2C_1A_TrustFrameworkExtensions</PolicyId>
  </BasePolicy>

  <BuildingBlocks>
    <ClaimsSchema>
      <ClaimType Id="email">
        <UserInputType>Readonly</UserInputType>
      </ClaimType>
    </ClaimsSchema>
  </BuildingBlocks>

  <ClaimsProviders>
    <ClaimsProvider>
      <DisplayName>Local Account</DisplayName>
      <TechnicalProfiles>
        <TechnicalProfile Id="LocalAccountSignUpWithLogonEmail">
          <Metadata>
            <Item Key="IncludeClaimResolvingInClaimsHandling">true</Item>
          </Metadata>
          <InputClaims>
            <InputClaim ClaimTypeReferenceId="email" DefaultValue="{OIDC:LoginHint}" AlwaysUseDefaultValue="true" />
          </InputClaims>
        </TechnicalProfile>
      </TechnicalProfiles>
    </ClaimsProvider>
  </ClaimsProviders>

  <RelyingParty>
    <DefaultUserJourney ReferenceId="SignUpOrSignIn" />
    <TechnicalProfile Id="PolicyProfile">
      <DisplayName>PolicyProfile</DisplayName>
      <Protocol Name="OpenIdConnect" />
      <OutputClaims>
        <OutputClaim ClaimTypeReferenceId="displayName" />
        <OutputClaim ClaimTypeReferenceId="givenName" />
        <OutputClaim ClaimTypeReferenceId="surname" />
        <OutputClaim ClaimTypeReferenceId="email" />
        <OutputClaim ClaimTypeReferenceId="objectId" PartnerClaimType="sub"/>
        <OutputClaim ClaimTypeReferenceId="identityProvider" DefaultValue="" />
        <OutputClaim ClaimTypeReferenceId="tenantId" AlwaysUseDefaultValue="true" DefaultValue="{Policy:TenantObjectId}" />
      </OutputClaims>
      <SubjectNamingInfo ClaimType="sub" />
    </TechnicalProfile>
  </RelyingParty>
</TrustFrameworkPolicy>