SCIM User Request Converter Lambda

If you would like to convert an incoming SCIM User and optionally SCIM EnterpriseUser request into a User, you must specify a lambda in the SCIM configuration. This lambda will be invoked prior to the User being 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:

function convert(user, options, scimUser) {
  // Lambda code goes here

This lambda must contain a function named convert that takes three parameters. The parameters that the lambda is passed are:

  • user - the FusionAuth User object
  • options - options contains optional FusionAuth request options ** options.applicationId ** options.disableDomainBlock ** options.sendSetPasswordEmail ** options.skipVerification NOTE: only applies during a User create request
  • scimUser - the SCIM request object

The FusionAuth objects are well documented here in the User API documentation. The options object contains parameters matching the non-User object Create User API parameters, such as disableDomainBlock.

The SCIM User object is a JavaScript object containing the SCIM User and optionally the SCIM EnterpriseUser request JSON payload. See SCIM User and SCIM EnterpriseUser extension.

You may add or modify anything in the user and options objects.

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 Request Converter Lambda that converts an incoming SCIM User and SCIM EnterpriseUser request to a FusionAuth User is available and may be used or modified. The lambda function is documented below.

function convert(user, options, scimUser) {
  // Un-comment this line to see the scimUser object printed to the event log
  //, null, 2));

  // Request options
  // Note, sendSetPasswordEmail is only utilized during a user create request.
  // options.applicationId = null;
  // options.disableDomainBlock = false;
  // options.sendSetPasswordEmail = false;
  // options.skipVerification = false; =; = &&; = &&;
  user.firstName = &&;
  user.fullName = &&;
  user.lastName = &&;
  user.middleName = &&;
  user.password = scimUser.password;
  user.username = scimUser.userName;

  if (scimUser.emails) {
    for (var i = 0; i < scimUser.emails.length; i++) {
      if (scimUser.emails[i].primary) { = scimUser.emails[i].value;

  // user.mobilePhone
  if (scimUser.phoneNumbers) {
    for (var j = 0; j < scimUser.phoneNumbers.length; j++) {
      if (scimUser.phoneNumbers[j].primary) {
        user.mobilePhone = scimUser.phoneNumbers[j].value;

  // Handle the Enterprise User extension and other custom extensions
  if (scimUser.schemas) {
    for (var k = 0; k < scimUser.schemas.length; k++) {
      var schema = scimUser.schemas[k];
      if (schema !== 'urn:ietf:params:scim:schemas:core:2.0:User') { = || {}; = || {};[schema] = scimUser[schema] || {};