Step-By-Step Guide:

  1. Navigate to the admin panel of your site.
  2. Log in using your account credentials.
  3. Navigate to Stores > Configuration:


  4. Scroll down the left hand navigation panel until you come across Sales >Payment Methods:


  5. Click on 'SecurePay' to expand the settings:


    • Changed enabled to Yes.
    • Enter in your SecurePay username in the SecurePay login ID
    • Enter in your SecurePay POS Password in the SecurePay Password 

  6. Save the changes using the orange "Save Config" button on the upper-right of the page: