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Document Number: 993

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Virtual Merchant - 4003 HTTP POST transactions are not allowed

This is caused by a mis-configuration of your gateway.

Follow these steps to fix the error
  1. login to https://www.myvirtualmerchant.com
  2. Go into "Terminal Setup"
  3. Go into "Advanced System Configuration"
  4. Check the box labeled "Enable HTTP Transaction"
  5. Check the "HTTP Referrer" box and enter this URL
    http://hyelighting.cartmanager.net/cgi-bin/cart.cgi
  6. Save

Note: it is a good idea to test your account with the Credit card test numbers after making these changes.