I was trying to let the customer choose the customer group while the customer registration in magento 2.

What i did was, i passed the group id on hidden field like:

<input type="hidden" name="group_id" id="group_id" value="2" />

But it is not working. When i check the customer from admin panel, the default group was chosen.

My question is:

  1. Can I change the customer group this way?
  2. I can see another method of using event observer method on customer register success but I would prefer this method if it works?

Can anyone help on this?


  • 1
    The solution you are suggesting is for magento 1 but i am asking for magento 2. Please read the question carefully. Oct 20, 2016 at 5:20
  • try : $this->session->setCustomerGroupId("2"); Oct 20, 2016 at 5:26
  • Where should i add above snippet?? Oct 20, 2016 at 5:46

3 Answers 3


I get to solve it so i thought answering here so that it would help others too.

What I did?

I choose event-observer approach to get this done. I created a module which track the customer register success event.You can create the module on the fly from https://mage2gen.com/ . This is very cool and it let's to create a module easily. I just created an observer with the event customer_register_success and it gives me the whole module.

It provide with the observer, with just class and few things defined.

Below is the code added by me:


namespace Custom\Customergroup\Observer\Customer;
// added by me
use Magento\Customer\Api\CustomerRepositoryInterface;

class RegisterSuccess implements \Magento\Framework\Event\ObserverInterface {

     * @var CustomerRepositoryInterface
//added by me
    private $customerRepository;

    public function __construct(
        \Magento\Framework\App\RequestInterface $request,
         CustomerRepositoryInterface $customerRepository
        $this->_request = $request;
        $this->customerRepository = $customerRepository;
    //ends here
    public function execute(
        \Magento\Framework\Event\Observer $observer

        $id = $observer->getEvent()->getCustomer()->getId();
        $customer = $this->customerRepository->getById($id);

         $group_id = $this->_request->getParam('group_id');




I have added the comment which shows my modification.

If anyone has better solution please feel free to add.


  • have you added your code in that module in observer folder Feb 21, 2017 at 7:48
  • can you tell me in brief with path of your extension Feb 21, 2017 at 7:48
  • check the name space to get the path of the file name Feb 22, 2017 at 10:13
  • 1
    I have tested it and looks like all fine only the customer load because it is giving error that no customer exists with the id, So one thing I assume is you already have customer data from which you are getting id, So there is no need to load the customer again. But +10 for the great idea of creating extension on the fly, it helps me a lot. Thank you
    – Asish Hira
    Jul 31, 2017 at 21:52
  • Sorry for the selfless promotion but there is ready made extension that does this and much more - bit.ly/M2-Customer-Group-Switcher-Pro-Fb
    – MagePsycho
    Oct 3, 2017 at 19:44

First create your configuration file in [Company Name][Module Name]\etc\frontend\events.xml :

<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="customer_register_success">
        <observer instance="[Company Name]\[Module Name]\Observer\Frontend\Customer\RegisterSuccess" name="[Company Name]_[Module Name]_observer_frontend_customer_registersuccess_customer_register_success"/>

Then create the observer:


namespace [Company Name]\[Module Name]\Observer\Frontend\Customer;

use Magento\Framework\Event\ObserverInterface;

class RegisterSuccess implements \Magento\Framework\Event\ObserverInterface

     const CUSTOMER_GROUP_ID = 2;

      protected $_customerRepositoryInterface;

      public function __construct(
        \Magento\Customer\Api\CustomerRepositoryInterface $customerRepositoryInterface
    ) {
        $this->_customerRepositoryInterface = $customerRepositoryInterface;

     * Execute observer
     * @param \Magento\Framework\Event\Observer $observer
     * @return void
    public function execute(
        \Magento\Framework\Event\Observer $observer
    ) {
       $customer = $observer->getEvent()->getCustomer();
        if ($customer->getGroupId() == 1) {

Pls check this link

Magento2 Customer Group Change in a custom registration form #2650


  • Thanks pratik, i had already visited that but it's not much of help. Oct 20, 2016 at 11:42
  • it's working for my end.
    – Pratik
    Oct 21, 2016 at 10:43

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