# SCIM User Response Converter Lambda

An overview of the SCIM User Response Converter lambda.

> For the index of this section of the site, see [llms.txt](https://fusionauth.io/docs/llms.txt)

If you would like to convert an outgoing FusionAuth User response into a SCIM User and optionally SCIM EnterpriseUser, you must specify a lambda in the SCIM configuration. This lambda will be invoked after the User was acted upon.

When you create a new lambda using the FusionAuth UI we will provide you an empty function for you to implement.

## Lambda Structure

If you are using the API to create the lambda you will need to ensure your function has the following signature:

```javascript
function convert(scimUser, user, context) {
  // Lambda code goes here
}
```

This lambda must contain a function named `convert` that accepts the following parameters:

*   `scimUser` - the SCIM response object. You can modify this object.
*   `user` - the FusionAuth User object. This object is read-only.
*   `context` - Available since `1.64.0` - an object containing the context of the request, including access to [secrets](https://fusionauth.io/docs/extend/code/lambdas.md#secrets). This object is read-only.

The FusionAuth `user` object is well documented in the [User API](https://fusionauth.io/docs/apis/users.md) documentation. The SCIM User object is a JavaScript object containing the SCIM User and optionally the SCIM EnterpriseUser response JSON payload. See [SCIM User](https://datatracker.ietf.org/doc/html/rfc7643#section-4.1) and [SCIM EnterpriseUser extension](https://datatracker.ietf.org/doc/html/rfc7643#section-4.3).

You may add or modify anything in the `scimUser` object.

## Assigning The Lambda

Once a lambda is created, you must assign it to a Tenant. See the SCIM tab in the Tenant configuration.

## Default Lambda

A default SCIM User Response Converter Lambda that converts an outgoing FusionAuth User to a SCIM USER and SCIM EnterpriseUser response to a FusionAuth User is available and may be used or modified. The lambda function is documented below.

```javascript
function convert(scimUser, user) {
  // Un-comment this line to see the user object printed to the event log
  // console.info(JSON.stringify(user, null, 2));

  scimUser.active = user.active;
  scimUser.userName = user.username;
  scimUser.name = {
    formatted: user.fullName,
    familyName: user.lastName,
    givenName: user.firstName,
    middleName: user.middleName,
    honorificPrefix: user.data.honorificPrefix,
    honorificSuffix: user.data.honorificSuffix
  };

  scimUser.phoneNumbers = [{
    primary: true,
    value: user.mobilePhone,
    type: "mobile"
  }];

  scimUser.emails = [{
    primary: true,
    value: user.email,
    type: "work"
  }];

  // Optionally return any custom extensions stored in user.data
  if (user.data && user.data.extensions) {
    for (var extension in user.data.extensions) {
      if (scimUser.schemas.indexOf(extension) === -1) {
        scimUser.schemas.push(extension);
      }
      scimUser[extension] = user.data.extensions[extension];
    }
  }
}
```

Related

[Extend SCIM User Request Converter Lambda An overview of the SCIM User Request Converter lambda. scim user lambdascim provisioningfusionauth lambda](https://fusionauth.io/docs/extend/code/lambdas/scim-user-request-converter.md)

[Extend SCIM Group Response Converter Lambda An overview of the SCIM Group Response Converter lambda. scim provisioningfusionauth lambdascim response](https://fusionauth.io/docs/extend/code/lambdas/scim-group-response-converter.md)

[Extend SCIM Group Request Converter Lambda An overview of the SCIM Group Request Converter lambda. scim provisioningfusionauth lambdauser provisioning](https://fusionauth.io/docs/extend/code/lambdas/scim-group-request-converter.md)

[Lifecycle Azure AD SCIM Client Learn how to configure Azure AD/Microsoft Entra ID as a SCIM client. scim provisioninguser provisioning](https://fusionauth.io/docs/lifecycle/migrate-users/scim/azure-ad-client.md)
---

## Other pages in Lambdas

> For the full index of this section, see [Extend](https://fusionauth.io/docs/llms-extend.txt).

- [Client Credentials JWT Populate Lambda](https://fusionauth.io/docs/extend/code/lambdas/client-credentials-jwt-populate.md): An overview of the Client Credentials JWT Populate lambda.
- [Lambdas](https://fusionauth.io/docs/extend/code/lambdas.md): An overview of FusionAuth's lambdas, which are pluggable JavaScript code that run at various points in the user lifecycle.
- [JWT Populate Lambda](https://fusionauth.io/docs/extend/code/lambdas/jwt-populate.md): An overview of the JWT populate lambda.
- [Call an API from a Lambda](https://fusionauth.io/docs/extend/code/lambdas/lambda-remote-api-calls.md): An overview of how to make API calls from Lambdas.
- [Login Validation Lambda](https://fusionauth.io/docs/extend/code/lambdas/login-validation.md): An overview of the login validation lambda.
- [MFA Requirement Lambda](https://fusionauth.io/docs/extend/code/lambdas/mfa-requirement.md): An overview of the MFA requirement lambda.
- [Apple Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/apple-reconcile.md): An overview of the Apple Reconcile lambda.
- [Epic Games Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/epic-games-reconcile.md): An overview of the Epic Games Reconcile lambda.
- [External JWT Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/external-jwt-reconcile.md): An overview of the External JWT Reconcile lambda.
- [Facebook Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/facebook-reconcile.md): An overview of the Facebook Reconcile lambda.
- [Google Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/google-reconcile.md): An overview of the Google Reconcile lambda.
- [HYPR Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/hypr-reconcile.md): An overview of the HYPR Reconcile lambda.
- [LDAP Connector Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/ldap-connector-reconcile.md): An overview of the LDAP Connector Reconcile lambda.
- [LinkedIn Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/linkedin-reconcile.md): An overview of the LinkedIn Reconcile lambda.
- [Nintendo Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/nintendo-reconcile.md): An overview of the Nintendo Reconcile lambda.
- [OpenID Connect Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/openid-connect-response-reconcile.md): An overview of the OpenID Connect Response Reconcile lambda.
- [SAML v2 Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/samlv2-response-reconcile.md): An overview of the SAML v2 Response Reconcile lambda.
- [Sony PlayStation Network Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/sony-playstation-network-reconcile.md): An overview of the Sony PlayStation Network Reconcile lambda.
- [Steam Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/steam-reconcile.md): An overview of the Steam Reconcile lambda.
- [Twitch Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/twitch-reconcile.md): An overview of the Twitch Reconcile lambda.
- [Twitter Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/twitter-reconcile.md): An overview of the Twitter Reconcile lambda.
- [Xbox Reconcile Lambda](https://fusionauth.io/docs/extend/code/lambdas/reconcile/xbox-reconcile.md): An overview of the Xbox Reconcile lambda.
- [SAML v2 Populate Lambda](https://fusionauth.io/docs/extend/code/lambdas/samlv2-response-populate.md): An overview of the SAML v2 populate lambda.
- [SCIM Group Request Converter Lambda](https://fusionauth.io/docs/extend/code/lambdas/scim-group-request-converter.md): An overview of the SCIM Group Request Converter lambda.
- [SCIM Group Response Converter Lambda](https://fusionauth.io/docs/extend/code/lambdas/scim-group-response-converter.md): An overview of the SCIM Group Response Converter lambda.
- [SCIM User Request Converter Lambda](https://fusionauth.io/docs/extend/code/lambdas/scim-user-request-converter.md): An overview of the SCIM User Request Converter lambda.
- [Self-Service Registration Validation Lambda](https://fusionauth.io/docs/extend/code/lambdas/self-service-registration.md): An overview of the Self-Service Registration Validation lambda.
- [Test Lambdas](https://fusionauth.io/docs/extend/code/lambdas/testing.md): A guide on how to create and test lambdas with FusionAuth.
- [UserInfo Populate Lambda](https://fusionauth.io/docs/extend/code/lambdas/userinfo-populate.md): An overview of the UserInfo populate lambda.