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1. Make sure you installed the latest Salesforce packages version: Installing & Upgrading Salesforce Managed Packages
2. Configure package push data to the Magento: Salesforce to Magento 2 sync setup
3. After our module installation open the "Quick Order" config page: 
   

4. Here you can Enable/Disable this feature or change the security settings of this module:
   

   Info
   Our module generates a temporary token to provide you with access to the Magento admin area.

   1. Allow Quick Order - here you can enable or disable this module feature
   2. Quick Order Token time to live - how long a link generated by Salesforce will be valid. 
   3. Quick Order Token size - how big token will be created.
   4. Delay after the wrong request - to prevent brute-force attacks our module will lock the module after an incorrect authorization attempt for the time defined here.

IMPORTANT: You also need to remove the security key from URLs

https://magento.stackexchange.com/questions/178947/magento-2-how-to-remove-encryption-key-from-url

Salesforce setup:

1. Install our latest packages version: Installing & Upgrading Salesforce Managed Packages
2. Setup Custom salesforce domain: https://sfdcmonkey.com/2017/02/10/enable-custom-domain-salesforce/
   Actually, you should go to the Setup → My Domain and create custom domain
   
   
   
   
3. Add the "Magento Quick Order Action" component to your Contact page layout:
   Open some Contact page and click the "Edit page"
   
   
   Drag and drop the "Magento Quick Order Action" component on your page:
   
   

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