Editing Magento (section)

==Areas==
===Catalog and Products===
* Admin -> Catalog -> Products

====Custom Attributes====
* Stores -> Attributes Section -> Product -> Add New Attribute
* Catalog -> Products -> Edit -> Add Attribute -> Select -> Add Selected
* assignment in Attributes section

===Guest Orders===
* System menu -> Configuration -> Checkout button in the Sales section on the left -> Checkout Options panel on the right. After you expand the Checkout Options panel you'll see a drop-down menu Allow Guest Checkout

===Customer===
* Magento 2.x applies the new SHA-256 hashing algorithm over the old MD5 in Magento 1. SHA-256 stands for Secure Hash Algorithm which is used in Magento 2 to hash passwords.
* The Magento_Customer module uses the EAV structure to store customer data. Thus, there is no single table that stores customer information. Rather, multiple tables exist, depending on the customer property and its data type.
* /vendor/magento/module-customer/view/frontend/layout/customer_account_edit.xml

===Logging===
* logging goes to <code><MAGENTO_DIR>\var\log</code> or if an error record it is report in <code><MAGENTO_DIR>\var\log\report\<ID></code>
* see good description in https://black.bird.eu/en/blog/magento2logs.html or http://www.thienphucvx.com/magento-2-logging-to-a-custom-file/
* log output is generated by constructor injection PSR-3 interface <code>\Psr\Log\LoggerInterface $logger</code> which is implemented in <code>MAGENTO_DIR>\vendor\psr\log\Psr\Log</code>
* interface is implemented by Monolog library located in <code><MAGENTO_DIR>\vendor\monolog\monolog</code>, this mapping is defined in <MAGENTO_DIR>/app/etc/di.xml by <code><preference for="Psr\Log\LoggerInterface" type="Magento\Framework\Logger\Monolog"/></code>

===Shipping===
* Admin -> Stores -> Configuraton -> Sales -> Shipping Settings -> Origin
* Admin -> Stores -> Configuraton -> Sales -> Shipping Methods or Admin -> Shops -> Konfiguration -> Umsatz -> Versandmethoden
* internally the term method also refers to something like 'standard' or 'express
* [https://devdocs.magento.com/guides/v2.3/howdoi/checkout/checkout_overview.html official documentation to customize shipping in checkout]
* programmatically:
** [[File:MagentoShippingConfiguration1.png]]
** <code>$method->setMethodTitle(); $method->setMethod();$method->setCarrierTitle();$method->setCarrier();</code>
** [[File:MagentoShippingShop1.png]]
** [[File:MagentoShippingShop2.png]]
** table sales_order->shipping_description has <CARRIERTITLE>-<METHODTITLE>
** table sales_order->shipping_method has <CARRIER>_<METHOD>
** table sales_order_grid->shipping_information has <CARRIERTITLE>-<METHODTITLE>
** table quote_shipping_rate->carrier has <CARRIER>
** table quote_shipping_rate->carrier_title has <CARRIERTITLE>
** table quote_shipping_rate->code has <CARRIER>_<METHOD>
** table quote_shipping_rate->method has <METHOD>
** table quote_shipping_rate->method_title has <METHODTITLE>

===Prices===
* SubTotal: in customer currency
* BaseSubTotal: in shop's base currency

===Currency===
* Admin -> Stores -> Configuration -> General -> Currency Setup

===Admin===
* Left area (Dashboard down to System, ...) is called menu 
** to extend the main menu see [https://inchoo.net/magento-2/admin-menu-item-magento-2/ here] or [https://www.mageplaza.com/magento-2-module-development/create-admin-menu-magento-2.html here]
** to extend the Customer->All Customers->Edit->Customer Information menu see [https://devdocs.magento.com/guides/v2.3/ext-best-practices/extension-coding/example-module-adminpage.html here] or [https://www.dckap.com/blog/tab-in-customer-admin-in-magento-2/ here]
** to extend the Stores->Configuration->Menu (Tabs, Sections, Groups, Fields) see [https://www.mageplaza.com/magento-2-module-development/create-system-xml-configuration-magento-2.html here] or Sport Boeckmann

* Timeout: Stores > Settings > Configuration > Advanced > Admin > Security > Admin Session Lifetime (seconds)
====ACL====
M2 can have unlimited roles, each having a list of ACL rules.
* System -> Benutzerrollen -> Click on Role -> Rollen-Resourcen