1. Problem with update Magento to 2.4.3 version

    If you get this error when running bin / magento setup: upgrade command
    Unable to apply data patch Magento\Paypal\Setup\Patch\Data\UpdateBmltoPayLater for module Magento_Paypal.

    Original exception message: Notice:

    Undefined offset: 1 in /vendor/magento/module-paypal/Setup/Patch/Data/UpdateBmltoPayLater.php on line 138

    then you need to execute the following command in the Database
    DELETE FROM `core_config_data` WHERE path="payment/paypal_express_bml/active";

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  2. How do I get a Site ID and Password to work with the DHL API?

    To use our DHL Express Comprehensive Shipping for Magento® 2.x module, you must have a Site ID and Password that is not the same as your login details.

    To obtain a Site ID and Password, contact your DHL manager, he will make a request for an account to work with the DHL API.

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  3. Proxy class not generated when running php bin/magento setup:di:compile command

    If after running the command php bin / magento setup: di: compile your proxy class was not created, then a possible reason may be that your di.xml has line breaks in the "argument" field.

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  4. API Documentation for el-Print software

    The program accepts print data in JSON format.
    The WebSocket protocol is used to communicate between your application and el-Print.

    API Url: ws://host:port/ws

    host - domain or IP address specified in the program configuration.

    port - port specified in the program configuration.

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  5. Configuration el-Print software for printing

    Установка и настройка программы для печати el-PrintIn this guide, you will learn how to properly configure el-Print printing software

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