Cart adding random value to gross amount before sending to paypal

[echotasha]

Zen Cart Version 1.3.8a

Add-ons: Products with Attributes Stock

Using PC01 Template

My site is at fusionscrubs.ca

The problem is in the code that is sent to Paypal (using paypal standard) from the checkout confirmation page. When the customer selects a product or products, the cart calculates the correct price, shipping, etc. The totals are right. BUT in the code that is sent to Paypal, the gross amount is a randomly calculated HIGHER number. I say randomly, because if the form is re-sent, the number can change. Paypal charges the customer this amount. Then the zen cart sends the customer an invoice with the original, lower amount.

For example, if I purchase a top for $49.99, tax is 5% (so $2.50). Shipping is free. My total should be $52.49.

The relevant code from my checkout confirmation page is as follows:

<h2 id="checkoutConfirmDefaultHeadingCart">Shopping Cart Contents</h2>

<div class="buttonRow forward"><a href="http://fusionscrubs.com/shop/index.php?main_page=shopping_cart"><img src="includes/templates/template_default/buttons/english/small_edit.gif" alt="Edit" title=" Edit " width="40" height="16" /></a></div>
<br class="clearBoth" />



<table border="0" width="100%" cellspacing="0" cellpadding="0" id="cartContentsDisplay">
<tr class="cartTableHeading">
<th scope="col" id="ccQuantityHeading" width="30">Qty.</th>
<th scope="col" id="ccProductsHeading">Item Name</th>
<th scope="col" id="ccTotalHeading">Total</th>
</tr>
<tr class="rowEven">
<td class="cartQuantity">1&nbsp;x</td>
<td class="cartProductDisplay">6301/6400PR SCRUB SET
<ul class="cartAttribsList"> <li>Colour: Sienna Brown</li>
<li>Size: XS</li>
</ul> </td>

<td class="cartTotalDisplay">
$49.99 </td>
</tr>
</table>
<hr />

<div id="orderTotals"><div id="otsubtotal">
<div class="totalBox larger forward">$49.99</div>
<div class="lineTitle larger forward">Sub-Total:</div>
</div>
<br class="clearBoth" />
<div id="otshipping">
<div class="totalBox larger forward">$0.00</div>
<div class="lineTitle larger forward">Delivery (Delivery is free within Edmonton and surrounding area):</div>
</div>
<br class="clearBoth" />
<div id="ottax">
<div class="totalBox larger forward">$2.50</div>
<div class="lineTitle larger forward">Canada GST 5%:</div>
</div>
<br class="clearBoth" />
<div id="ottotal">
<div class="totalBox larger forward">$52.49</div>
<div class="lineTitle larger forward">Total:</div>
</div>
<br class="clearBoth" />
</div>

<form name="checkout_confirmation" action="https://www.paypal.com/cgi-bin/webscr" method="post" id="checkout_confirmation" onsubmit="submitonce();"><input type="hidden" name="charset" value="iso-8859-1" />
<input type="hidden" name="lc" value="CA" />
<input type="hidden" name="page_style" value="Primary" />
<input type="hidden" name="custom" value="zenid=b1566551fa3bb148ca30c2a9da4cb273" />
<input type="hidden" name="business" value="[email protected]" />
<input type="hidden" name="return" value="http://fusionscrubs.com/shop/index.php?main_page=checkout_process&amp;referer=paypal" />
<input type="hidden" name="cancel_return" value="http://fusionscrubs.com/shop/index.php?main_page=checkout_payment" />
<input type="hidden" name="shopping_url" value="http://fusionscrubs.com/shop/index.php?main_page=shopping_cart" />
<input type="hidden" name="notify_url" value="http://fusionscrubs.com/shop/ipn_main_handler.php" />
<input type="hidden" name="redirect_cmd" value="_xclick" />
<input type="hidden" name="rm" value="2" />
<input type="hidden" name="bn" value="zencart" />
<input type="hidden" name="mrb" value="R-******" />
<input type="hidden" name="pal" value="*****" />
<input type="hidden" name="first_name" value="*****" />
<input type="hidden" name="last_name" value="****" />
<input type="hidden" name="address1" value="*******" />
<input type="hidden" name="city" value="*****" />
<input type="hidden" name="state" value="AB" />
<input type="hidden" name="zip" value="****" />
<input type="hidden" name="country" value="CA" />
<input type="hidden" name="email" value="***@****.ca" />
<input type="hidden" name="H_PhoneNumber" value="****" />
<input type="hidden" name="night_phone_a" value="***" />
<input type="hidden" name="night_phone_b" value="***" />
<input type="hidden" name="night_phone_c" value="***" />
<input type="hidden" name="day_phone_a" value="***" />
<input type="hidden" name="day_phone_b" value="***" />
<input type="hidden" name="day_phone_c" value="****" />
<input type="hidden" name="no_shipping" value="1" />
<input type="hidden" name="upload" value="1" />
<input type="hidden" name="currency_code" value="CAD" />
<input type="hidden" name="cmd" value="_ext-enter" />
<input type="hidden" name="item_name" value="fusionscrubs.com Purchase" />
<input type="hidden" name="item_number" value="Store Receipt" />
<input type="hidden" name="amount" value="56.31" />
<input type="hidden" name="shipping" value="0.00" />
<input type="hidden" name="tax" value="0.00" />
<input type="hidden" name="tax_cart" value="0.00" />
<div class="buttonRow forward"><input type="image" src="includes/templates/template_default/buttons/english/button_confirm_order.gif" alt="Confirm Order" title=" Confirm Order " name="btn_submit" id="btn_submit" /></div>
</form>
<div class="buttonRow back"><strong>Final Step</strong><br />- continue to confirm your order. Thank you!</div>

</div>

[/I]

I'm just wondering if anyone else has had this problem. Or maybe there is an easy fix.

I've searched the forum. I've looked in the FAQ. Please help me.

[DrByte]

If your PayPal module is set with USD as selected currency but your customer is shopping in CAD, then you'll have a problem.
Similarly if your store's default currency is set to USD and the customer is shopping in CAD, then the exchange rate from USD to CAD is being calculated.
Similarly again if you've got your PayPal module set to CAD and the customer is shopping in USD.

Sort out your currency settings and things should take care of themselves.

[echotasha]

Thanks, Dr. Byte! That did it.

I changed everything to CAD - both the Paypal module and the currency under Localization. But then all my prices went to 0 . . . ack! When I added USD to Currency under Localization again and made USD and CAD both worth $1.00 equally, it works again. I know I've still got a problem, because no prices show when I only have CAD, but this will be OK for now.

EchoTasha

[DrByte]

There's an FAQ article for that: https://www.zen-cart.com/tutorials/index.php?article=96