This article shows how you can get the associated Simple Product ID and Quantity (Qty) / inventory from a Configurable Product in frontend product detail page in Magento 2.x.
– The below code assumes that Swatches have been used in the product detail page.
– Suppose you have two configurable attributes (color and size) for your configurable product.
– When you click on any color swatch and then click on the size swatch:
– then the available stock quantity of that particular color & size associated product will be displayed.

In Magento 2.x, the full error display on frontend is disabled by default. This article shows different methods on how you can see the full error message in your Magento 2 website.
I have written another article on how to Enable/View Full Error Display on Magento 1.x. This one is a similar article for Magento 2.x.

In Magento 1.x, the full error display on frontend is disabled by default. This article shows different methods on how you can see the full error message in your Magento 1 website.
Method 1: View full error from var/report folder

Problem:
– Opened Magento 2 Admin
– Entered the correct admin login information
– And then, got the following error:
Exception #0 (ReflectionException): Class Magento\Authorization\Model\Acl\Role\GroupFactory does not exist

This article shows how you can get custom options values and configurable options values in shopping cart page in Magento 1.x.
We use the checkout session quote collection for this purpose.

This article shows how you can unlock the locked reindexing process Magento 2 via command line.
Problem
Sometimes a scenario comes when the indexing process gets locked at the time of reindexing. When the process or the index type is locked then you cannot reindex that particular locked index type. The reindex will always skip that index type.

This article shows how you can upgrade/update Magento 2 to any particular version using composer and command line.
First of all, you have to open terminal/command prompt.

This article shows how you can enable or disable Magento 2 modules using the command line. In my previous article, I have listed out all the command line tools that can be used in Magento 2. This article specifically shows about commands to enable/disable Magento 2 modules.
Get the List of All Modules

This article shows how you can upgrade/update your Magento 1.x via both Browser GUI and Command Line.
Before upgrading, we first have to create backup of our Magento site’s files and database so that we can restore the backed up files and database if by any problem the upgrade process fails.

This article shows how you can enable or disable Maintenance mode in Magento 2 using the command line. In my previous article, I have listed out all the command line tools that can be used in Magento 2. This article specifically shows about commands to enable/disable maintenance mode in Magento 2.
Check Maintenance Mode Status

This article shows how you can reindex Magento 2 index types using the command line. In my previous article, I have listed out all the command line tools that can be used in Magento 2. This article specifically shows about commands to reindex Magento 2 index types.
Get Index Types Info

This article shows how you can clear Magento 2 cache using command line. In my previous article, I have listed out all the command line tools that can be used in Magento 2. This article specifically shows about commands to clear Magento 2 cache.
Check Cache Status

Problem:
I transferred my Magento site files from one computer to another (it can be from local computer to online or from development site to production site). I imported the database. Now, when I try to browse the new location’s site, I get the following error:
There has been an error processing your request
Item (Mage_Core_Model_Store) with the same id “0” already exist

This article shows how you can add new columns to product grid (Catalog -> Manage Products) in Magento 1.x admin.
For this, you need to rewrite/override the Adminhtml’s catalog_product_grid block class.

This article shows how you can add new column to customer grid in Magento 1.x admin. In this example, we will be adding a fetching the fax field value from customer’s billing address and showing in the customer grid in Magento admin.
For this, you need to rewrite/override the Adminhtml’s customer_grid block class.