Magento – Magento 2 multiple websites but same product catalog

Magento have great feasibility with Attributes. When You create a new attribute then you can define what will be scope of that attribute means if scope is store, then you can put different values on store level for that particular attribute.

If your attribute scope is website then you can put different value on website level for that particular attribute means on store level you can not have different value under a particular website.

If your attribute scope is global then you will have same value for all the stores and website.

But there are some attribute which you will have by default into a default magento installation which you may need to use. But you can differentiate value of those attributes per scope of those attribute.

And you can not edit these default attributes scope from the admin panel. If you needed to do that then you have make changes into database.

For find attach screenshot where you can the scope of the attributes.

If you wanted this as a feature you can write a module, and observe the save product event and loop through all the stores and either:

• condition based looking for "english" if they are named like that
• hardcode the id's
• provide a configuration option in the admin to select the english stores.
• add an attribute to the store object

Another way to do it as a one off:

<?php

require '../app/Mage.php';

$englishStore = 1; // English Store (the one you want to copy from)
$attribute = "short_description"; // Attribute to copy

foreach (Mage::app()->getWebsites() as $website) {
    foreach ($website->getGroups() as $group) {
        $stores = $group->getStores();
        foreach ($stores as $store) {
            //store object
            //print_r($store->getData());

            // if english found in name or change this so it's hardcoded store id's
            if (strstr($store->getData('name'),"english")) {

                $StoreToUpdateCollection = Mage::getModel('catalog/product')->getCollection()
                    ->addAttributeToSelect('*')
                    ->addAttributeToFilter('store_id', $store->getData('store_id'));

                foreach ($StoreToUpdateCollection as $product) {

                    // get the description from the base English store
                    $englishProduct = Mage::getModel('catalog/product')->setStoreId($englishStore)->loadByAttribute('sku', $product->getData('sku'));
                    $newValue = $englishProduct->getData($attribute);

                    // update the attributes for the current store for the product ID
                    Mage::getSingleton('catalog/product_action')->updateAttributes(
                        array($product->getData('id')),
                        array($attribute => $newValue),
                        $store->getData('store_id')
                    );
                }


            }


        }
    }
}

I have not tested the updating part, would suggest trying this on a dev version.