Log in to Admin
Navigate to System > Extensions > Integrations
Click Add New Integration.
Enter a name for the integration in Name field.
Enter admin password in Your Password field. No additional fields are required.
Click the API tab. Select the Magento resources the integration can access.
You will be returned to the Integrations page.
Click the Activate link in the grid that corresponds to the TrueCommerce integration.
Click Allow. Please send TrueCommerce the credentials in a secure message:
Access Token Secret
Additional guidance may be accessed here.