strings/MSA.xml

<ClaimsProvider xmlns="http://schemas.microsoft.com/online/cpim/schemas/2013/06">
    <!-- https://learn.microsoft.com/en-us/azure/active-directory-b2c/identity-provider-microsoft-account?pivots=b2c-custom-policy /-->
    <Domain>live.com</Domain>
    <DisplayName>Microsoft Account</DisplayName>
    <TechnicalProfiles>
      <TechnicalProfile Id="{0}-OIDC">
        <DisplayName>Microsoft Account</DisplayName>
        <Protocol Name="OpenIdConnect" />
        <Metadata>
          <Item Key="ProviderName">https://login.live.com</Item>
          <Item Key="METADATA">https://login.live.com/.well-known/openid-configuration</Item>
          <Item Key="response_types">code</Item>
          <Item Key="response_mode">form_post</Item>
          <Item Key="scope">openid profile email</Item>
          <Item Key="HttpBinding">POST</Item>
          <Item Key="UsePolicyInRedirectUri">false</Item>
          <Item Key="client_id">{{{0}:clientId}}</Item>
        </Metadata>
        <CryptographicKeys>
          <Key Id="client_secret" StorageReferenceId="B2C_1A_{0}AppSecret"/>
        </CryptographicKeys>
        <OutputClaims>
          <OutputClaim ClaimTypeReferenceId="issuerUserId" PartnerClaimType="oid" />
          <OutputClaim ClaimTypeReferenceId="givenName" PartnerClaimType="given_name" />
          <OutputClaim ClaimTypeReferenceId="surName" PartnerClaimType="family_name" />
          <OutputClaim ClaimTypeReferenceId="displayName" PartnerClaimType="name" />
          <OutputClaim ClaimTypeReferenceId="authenticationSource" DefaultValue="socialIdpAuthentication" />
          <OutputClaim ClaimTypeReferenceId="identityProvider" PartnerClaimType="iss" />
          <OutputClaim ClaimTypeReferenceId="email" />
        </OutputClaims>
        <OutputClaimsTransformations>
          <OutputClaimsTransformation ReferenceId="CreateRandomUPNUserName" />
          <OutputClaimsTransformation ReferenceId="CreateUserPrincipalName" />
          <OutputClaimsTransformation ReferenceId="CreateAlternativeSecurityId" />
          <OutputClaimsTransformation ReferenceId="CreateSubjectClaimFromAlternativeSecurityId" />
        </OutputClaimsTransformations>
        <UseTechnicalProfileForSessionManagement ReferenceId="SM-SocialLogin" />
      </TechnicalProfile>
    </TechnicalProfiles>
  </ClaimsProvider>