Thanks Jason!
Here is the response:
3::1::270::Line item 1 is invalid.::::P::0::520331904::1 Pedal::30.00::CC::auth_capture::::Virginia::Scully::::2108 Medway::Charleston::SC::29412::::
I see Line item 1 is invalid, but I am not sure what that is referring to. Here is the code for the add to cart section.
<form name="Membership_6_ATC_36" method="POST" action="<%=cStr(Request.ServerVariables("SCRIPT_NAME"))%><%=WA_eCart_IIf((Request.ServerVariables("QUERY_STRING") <> ""), "?" & Request.ServerVariables("QUERY_STRING"), "")%>">
<input type="hidden" name="Membership_6_ID_Add" value="36" >
<input type="hidden" name="Membership_6_Name_Add" value="Pedal & Power House Tour Member" >
<input type="hidden" name="Membership_6_Quantity_Add" value="1" >
Tour Time
<select name="Membership_6_option1_Add">
<option value="8:30am" selected>8:30am</option>
<option value="8:45am">8:45am</option>
<option value="8:50am">8:50am</option>
</select>
<br>
Sandwich Selection
<select name="Membership_6_option2_Add">
<option value="Turkey" selected>Turkey</option>
<option value="Ham">Ham</option>
<option value="Veggie">Veggie</option>
</select>
<br>
Allergies, diet restrictions
<input type="text" name="Membership_6_option3_Add" value="n/a">
<br>
<input type="hidden" name="Membership_6_option4_Add" value="" >
<input type="submit" value="Add to Cart" name="Membership_6_ATC">
<input type="hidden" name="Membership_6_Price_Add" value="30" >
</form>