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Send fixed deposit price to PayPal

Thread began 12/10/2010 8:46 am by Heckie | Last modified 12/17/2010 11:33 am by Jason Byrnes | 2114 views | 6 replies |

12/10/2010 8:46 am  |  #1 Heckie

Send fixed deposit price to PayPal

I have set up a shopping cart using eCart 5.2 for a heating supply company using PayPal Pro UK. Heres the link to the product page: index.php

The way it works is that customer only has to pay a £25 deposit to book an installation, then the balance on completion to the installer (separate invoice).

The cart is quite complex in that there are separate rates of VAT for different products, but I have managed to set it up to calculate and display everything correctly and it works!!

What I need to do however is let the customer only pay the £25 deposit.

Is there a way to set a fixed price in the code that passes to PayPal?

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12/10/2010 10:46 am  |  #2 Dave BuchholzBeta Tester

I think what I would do is hard code the deposit as the amount sent to paypal as it is always the same, look for this code on the confirm page:

php:
$PP_PayProUK_itemized[0][0] = "AMT";
  $PP_PayProUK_itemized[1][0] = "".$eCart1->GrandTotal()  ."";



and change it to:

php:
$PP_PayProUK_itemized[0][0] = "AMT";
  $PP_PayProUK_itemized[1][0] = ""."25.00"  ."";



you will also need to amend the PayPal Express Checkout code as well and allow for this in your admin system

One thing I noticed is that when I added a boiler to the checkout is was subject to 5% vat bit against the deposit amount you say inc. 17.5% vat ?

Nice site by the way

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12/13/2010 1:21 am  |  #3 Heckie

Thanks!

I thought it was that line of code, but I had used the wrong syntax!

Regarding the VAT - The products themselves are subject the 5% VAT, but the deposit is subject to full rate so that is correct (or at least how the client wants it)!

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12/17/2010 9:35 am  |  #4 Heckie

Cant seem to get this to work - getting the following error:

Direct Pay Full Response:
Transaction refused because of an invalid argument. See additional error messages for details.The totals of the cart item amounts do not match order amounts.10413Error60.016207250.02

PayPal Express Checkout requests and responses :
Transaction refused because of an invalid argument. See additional error messages for details. The totals of the cart item amounts do not match order amounts. 10413Error63.01613293

Heres my PHP code:

<?php
$WA_PP_ECO_SetResult = WA_PP_ECO_SOAPObject();
if ($_SERVER["REQUEST_METHOD"] == "POST")  {
  $WA_PP_ECO_Set_params = array();
  $WA_PP_ECO_Set_params[0] = array();
  $WA_PP_ECO_Set_params[1] = array();
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "Username";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "xxxxxxxxxx";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "Password";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "xxxxxxxxxx";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "Signature";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "xxxxxxxxxx";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "System";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "WPPro";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "Currency";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "GBP";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "OrderTotal";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "".$ecartNRG->GrandTotal()  ."";  //*********IS THIS WHAT I CHANGE?************//
  
  $WA_PP_ECO_Do_itemized = array();
  $WA_PP_ECO_Do_itemized[0] = array();
  $WA_PP_ECO_Do_itemized[1] = array();
  $cartIndex = 0;
  while ( !$ecartNRG->EOF() )      {
	$nextIndex = count($WA_PP_ECO_Do_itemized[0]);
	$WA_PP_ECO_Do_itemized[0][$nextIndex] = "Amount" . strval($cartIndex+1) . "";
	$WA_PP_ECO_Do_itemized[1][$nextIndex] = "".$ecartNRG->DisplayInfo("Price")  ."";
	$nextIndex = count($WA_PP_ECO_Do_itemized[0]);
	$WA_PP_ECO_Do_itemized[0][$nextIndex] = "Name" . strval($cartIndex+1) . "";
	$WA_PP_ECO_Do_itemized[1][$nextIndex] = "".$ecartNRG->DisplayInfo("Name")  ."";
	$nextIndex = count($WA_PP_ECO_Do_itemized[0]);
	$WA_PP_ECO_Do_itemized[0][$nextIndex] = "Number" . strval($cartIndex+1) . "";
	$WA_PP_ECO_Do_itemized[1][$nextIndex] = "".$ecartNRG->DisplayInfo("ID")  ."";
	$nextIndex = count($WA_PP_ECO_Do_itemized[0]);
	$WA_PP_ECO_Do_itemized[0][$nextIndex] = "Quantity" . strval($cartIndex+1) . "";
	$WA_PP_ECO_Do_itemized[1][$nextIndex] = "".$ecartNRG->DisplayInfo("Quantity")  ."";
	$nextIndex = count($WA_PP_ECO_Do_itemized[0]);
	$WA_PP_ECO_Do_itemized[0][$nextIndex] = "Tax" . strval($cartIndex+1) . "";
	$WA_PP_ECO_Do_itemized[1][$nextIndex] = "";
    $ecartNRG->MoveNext();
    $cartIndex ++;
  }
  $ecartNRG->MoveFirst();
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "ItemTotal";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "".$ecartNRG->TotalColumn("TotalPrice")  ."";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "TaxTotal";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "".$ecartNRG->GetTax()  ."";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "ShippingTotal";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "".$ecartNRG->GetShipping()  ."";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "HandlingTotal";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "".$ecartNRG->GetCharges() - $ecartNRG->GetDiscounts()  ."";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "ReturnURL";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "http://77.92.68.215/~nrgsavin/installation/pp_confirm.php";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "CancelURL";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "http://77.92.68.215/~nrgsavin/installation/pp_cancel.php";
  $nextIndex = count($WA_PP_ECO_Set_params[0]);
  $WA_PP_ECO_Set_params[0][$nextIndex] = "PaymentAction";
  $WA_PP_ECO_Set_params[1][$nextIndex] = "Authorization";

  $WA_PP_ECO_SetResult = WA_PP_ECO_Set_Post($WA_PP_ECO_Set_params,$WA_PP_ECO_Do_itemized);
  if ($WA_PP_ECO_SetResult->isError) {
    if ("pp_checkout_failure.php" != "") {
      header("Location: ". "pp_checkout_failure.php"); exit;
    }
  }
  else {
    $ecartNRG->redirStr = $WA_PP_ECO_SetResult->ECOServer;
  }
}
?>
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12/17/2010 10:06 am  |  #5 Jason ByrnesWebAssist

yu cant just change the grand total that is passed.


you need to change all of the prices that are passed:
$WA_PP_ECO_Set_params[0][$nextIndex] = "OrderTotal";
$WA_PP_ECO_Set_params[1][$nextIndex] = "".$ecartNRG->GrandTotal() ."";


$WA_PP_ECO_Do_itemized[0][$nextIndex] = "Amount" . strval($cartIndex+1) . "";
$WA_PP_ECO_Do_itemized[1][$nextIndex] = "".$ecartNRG->DisplayInfo("Price") ."";


$WA_PP_ECO_Set_params[0][$nextIndex] = "ItemTotal";
$WA_PP_ECO_Set_params[1][$nextIndex] = "".$ecartNRG->TotalColumn("TotalPrice") ."";
$nextIndex = count($WA_PP_ECO_Set_params[0]);
$WA_PP_ECO_Set_params[0][$nextIndex] = "TaxTotal";
$WA_PP_ECO_Set_params[1][$nextIndex] = "".$ecartNRG->GetTax() ."";
$nextIndex = count($WA_PP_ECO_Set_params[0]);
$WA_PP_ECO_Set_params[0][$nextIndex] = "ShippingTotal";
$WA_PP_ECO_Set_params[1][$nextIndex] = "".$ecartNRG->GetShipping() ."";
$nextIndex = count($WA_PP_ECO_Set_params[0]);
$WA_PP_ECO_Set_params[0][$nextIndex] = "HandlingTotal";
$WA_PP_ECO_Set_params[1][$nextIndex] = "".$ecartNRG->GetCharges() - $ecartNRG->GetDiscounts() ."";


paypal looks at the grand total, the itemized amount * itemized quantity, the item total, tax total shipping total and handling total and makes sure they all add up correctly.


you will need to do some unsupported custom coding to get this working the way you want it to.

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12/17/2010 11:27 am  |  #6 Heckie

I gave it a shot and managed to get it working with custom columns and calculations - didn't need any hand coding - did it all through the eCart Behaviour panel.

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12/17/2010 11:33 am  |  #7 Jason ByrnesWebAssist

OK, glad to hear you have it working.

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