Allow merchants to use additional merchant ID for some products
Install module by composer
composer require tabby/m2-sub --no-update
composer updateCheck module status
php bin/magento module:status Tabby_SubEnable module
php bin/magento module:enable Tabby_SubUpgrade magento database
php bin/magento setup:upgradeGenerate DI configuration
php bin/magento setup:di:compileDeploy static content
php bin/magento setup:static-content:deploy