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.

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 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 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

Google Tag Manager is a FREE Magento 2 Extension that allows you to integrate Google Tag Manager to your site. This extension also provides ecommerce transaction tracking feature. You just need to enter your Tag Manager container id in the extension’s configuration settings.
This module is compatible with Magento version 2.0 and later.

This article shows how you can get attribute name or label, id, entity_type, etc. by attribute code in Magento 2.
If you would like get attribute name and value in Magento 1 then you may refer to this article: Magento: How to get attribute name and value?

This article shows how to get payment methods in Magento 2. We will be fetching 3 types of payment methods. They are:

1) All Payment Methods
2) Active/Enabled Payment Methods
3) Payment Methods that have been used while placing orders

This article shows how to get all customer groups name and id in Magento 2.
I will be showing an example in a Block class. You can write the code in other class (Helper/Model) as well.
Both ways (Dependency Injection & Object Manager way) are shown below.

This article/tutorial show how to download and install Magento 2 through command line interface (CLI). We will be using Composer to download Magento 2 from Magento’s repository.
Here is the step-by-step guide on installing Magento 2 via command line:

This article shows how to get custom option values of products/items added to cart or products of any order in Magento 2.
I will simply be using ObjectManager for this example.