How to integrate Magento 2.x
You will need to get your Access Token, Consumer Key, Consumer Secret, Access Token Secret from Magento 2.x admin panel.
Go to your Magento Store > System > Integrations.
Then press “Add New Integration“
In the Integration Info tab type in “Your Name”, “Email” and “Your Password”.
In the API panel, select the Resource Access drop-down menu, select All and press Save.
In the window that just loaded find your new integration bellow (which you named in the previous step) and press Activate.
In the next window press Allow.
You will now get all of the necessary details for your Magento 2.x integration.
Copy these details to your integration window back in Multiorders page. Give your Magento 2.x integration a name, choose your warehouse and press Connect.