> For the complete documentation index, see [llms.txt](https://docs.ingestlabs.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ingestlabs.com/implementation/web-sdk/tracking-events/login-sign-up.md).

# Login / Sign Up

When user logs in, fire this event.

```
window._mp.safeExecute('mpOnUserLogin', function() {
    /**
    * if user does not have first name and last name, split the name using space
    * and assign first half to fName and second to lName
    *
    *
    * Example:
    * var userName = 'full name';
    * var fName = '';
    * var lName = '';
    * 
    * if (userName.indexOf(' ') > -1) {
    *   fName = userName.split(' ')[0];
    *   lName = userName.split(' ')[1]; 
    * } else {
    *   fName = userName;
    *   lName = undefined;
    * }
   */
  
    eedl('user_info', {
      pid: '<unique identifier representing user>',
      email: '<email address of user>',
      phone: '<phone number of user - no country code>', // mandatory
      country: '<country code only>', // mandatory
      city: '<city - madurai>', // leave as undefined if not available
      state: '<state - Tamil Nadu>', // leave as undefined if not available
      fName: '<first name of user>', // leave as undefined if not available
      lName: '<last name of user>', // leave as undefined if not available
      zip: '<zip code>', // leave as undefined if not available
   });
      
    eedl('mp_login', {
      method: 'phone',
      ev_source: 'gtm',
      is_existing: 'Y' // 'Y' for an existing user and 'N' for a new user
    });  
  })();
```

### <mark style="background-color:red;">Send event from an iframe window</mark>

<mark style="background-color:red;">If the event occurs in a iframe window, you need to fire the event using the below script.</mark>

<pre><code>window.top.postMessage({
      event_name: 'mp_login',
      event_payload: {
            method: 'phone', // Login method used - 'phone' | 'email'
            ev_source: 'gokwik',
            pid: '&#x3C;unique identifier representing user>', // Shopify User ID
            email: '&#x3C;email address of user>',
            phone: '&#x3C;phone number of user - no country code>', // mandatory
            country: '&#x3C;country code only>', // mandatory
            city: '&#x3C;city - madurai>', // leave as undefined if not available
            state: '&#x3C;state - Tamil Nadu>', // leave as undefined if not available
            fName: '&#x3C;first name of user>', // leave as undefined if not available
            lName: '&#x3C;last name of user>', // leave as undefined if not available
            zip: '&#x3C;zip code>', // leave as undefined if not available
<strong>            is_existing: 'Y' // 'Y' for an existing user and 'N' for a new user
</strong>         }
    },
    'PARENT_URL'
);

PARENT_URL is the url of the website.
</code></pre>


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