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PHP 7.3 reaches end of support in December 2021 and Adobe Commerce 2.3.x reaches end of support in April 2022. You may want to consider planning your upgrade now to Adobe Commerce 2.4.x and PHP 7.4.x to help maintain PCI compliance.

ImportExport

Magento_ImportExport module provides a framework and basic functionality for importing/exporting various entities in Magento. It can be disabled and in such case all dependent import/export functionality (products, customers, orders etc.) will be disabled in Magento.