Mrthdrb

I use MasterCard Internet Gateway Service (MIGS) - Hosted Server (3-Party Payments) http://www.appmerce.com/migs-vpc-mastercard-internet-gateway-service-magento.html#.VkWD9b_CeiE

1: http://www.appmerce.com/migs-vpc-mastercard-internet-gateway-service-magento.html#.VkWD9b_CeiE module for payment.i configure all detail but after redirecting it to api.it gives Invalid Digital Order MIGS Payment Gateway error.
here is screenshot

i don't know what is issue .i googled about this but not success.

i have faced the same issue the problem is solved by removing the extra field value i was sending.

<input type="hidden" maxlength="15" value="SINGLE" name="vpc_TxSourceSubType">

after changing it's value to null solved my problem

<input type="hidden" maxlength="15" value="" name="vpc_TxSourceSubType">

i hope it will help other too.

in your can case i see your merchant account detail is not correct or you are missing the secret hash

make sure you must have these field

<input type="hidden" maxlength="250" value="https://migs.mastercard.com.au/vpcpay" size="63" name="virtualPaymentClientURL">
<input type="hidden" value="test" name="Title">
<input type="hidden" maxlength="8" size="20" value="1" name="vpc_Version">
<input type="text" maxlength="8" size="20" value="aces_code" name="vpc_AccessCode">
<input type="text" maxlength="16" size="20" value="your" name="vpc_Merchant">
<input type="hidden" maxlength="16" size="20" value="pay" name="vpc_Command">
<input type="hidden" maxlength="40" size="20" value="1467269875" name="vpc_MerchTxnRef">
<input type="hidden" maxlength="34" size="20" value="this is product-10" name="vpc_OrderInfo">
<input type="hidden" maxlength="10" size="20" value="70" name="vpc_Amount">
<input type="hidden" maxlength="5" size="20" value="en" name="vpc_Locale">
<input type="hidden" maxlength="250" value="return_url" size="63" name="vpc_ReturnURL">
<input type="hidden" maxlength="15" name="vpc_TicketNo">
<input type="hidden" maxlength="15" value="" name="vpc_TxSourceSubType">

In my case I had to make sure vpc_MerchTxnRef has a unique value for each request. If I sent any duplicate value then the mentioned error comes otherwise it works well.