In Order to adjust the product's stock, please follow the article


1. Open the Magento Backend - https://webstore.arcadespro.com/index.php/admin_ifdpyk/


2. Click on "Inventory Management" From the side menu


3. Click on "Inventory Adjustment"




4. Click on "Add Stock Adjustment" 



5. Select the Source and the reason for the adjustment and click on "Start to Adjust Stock"



6. Click on "Add Products to Adjust Stock" 



7. Select the products you want to adjust and click on "Add Selected Products"



8. Enter the QTY that will be added to the product in the "Adjust qty" field



9. To apply the changes, Click on "Save and Apply"

    To save the changes and continue editing later,  Click on "Save"