Magento2

We can disable Disable Smile-SA / Elasticsuite in Magento by executing this command 

php bin/magento modeul:disable Smile_ElasticsuiteCore Smile_ElasticsuiteCatalog Smile_ElasticsuiteCatalogGraphQl Smile_ElasticsuiteCatalogRule Smile_ElasticsuiteCatalogOptimizer Smile_ElasticsuiteTracker Smile_ElasticsuiteThesaurus Smile_ElasticsuiteSwatches Smile_ElasticsuiteIndices Smile_ElasticsuiteVirtualCategory

to install the needed plugins you need to execute this command 

To change the time please copy this file 

vendor\magento\module-ui\view\frontend\web\js\view\messages.js

to your them to be in this path

app\design\frontend\{vendor}\{theme}\Magento_Ui\web\js\view\messages.js

then modify this function 

You can add this to your code in order to reindex in UTC -5

0 5 * * * cd /home/{your-full-path}/public_html/ && php -f bin/magento indexer:reindex

Create this file "default.xml" in your theme directory in this folder "{vendor}/{theme}Magento_Search/layout"

add this code in the file 

We will show here how we can display a private content in a full cached page, it is very useful if you want to display information per customer 
Magento loads sections by AJAX request to /customer/section/load/ and caches loaded data in the browser local storage under the key mage-cache-storage. Magento tracks when some section is changed and load updated section automatically.

We will use this Vendor/Module as names

Go to Admin => Stores > Configuration > Catalog > Catalog > Recently Viewed/Compared Products select Yes to ( Synchronize widget products with backend storage )
 

Unable to save address. Please check input data.

It's a strange error we have it sometime, to solve it in some cases you execute this query 

SELECT entity_id, customer_id FROM quote WHERE customer_id != 0 AND customer_is_guest = 1;

and then update the records by this query 

UPDATE quote SET customer_is_guest = 0 WHERE customer_id != 0 AND customer_is_guest = 1;

reference url :

https://stackoverflow.com/a/58086757/4135373

the best way is to work on your custom theme by modifying these files

/app/design/frontend/{Vendor}/{theme}/Magento_Checkout/layout/checkout_index_index.xml

To do this we need to work on the design area it is the easiest way 

firs Create new folder under your theme 

Folder Name: Magento_ConfigurableProduct\web\js

Copy this file "configurable.js" from this path

vendor/magento/module-configurable-product/view/frontend/web/js/configurable.js 

in the line 407 you need to modify this part