no Invoice# passed

I'm trying to allow my users to purchase a product directly from my dashboard and avoid going through the amember shopping cart. I have Paypal buttons set up and have placed the code into the "PayPal Button Item Number" for each product.

When the user selects the option to purchase a product, I am creating an invoice in the system using the following code:

PHP:

$invoice = Am_Di::getInstance()->invoiceRecord;
$invoice->setUser(Am_Di::getInstance()->userTable->load($user_id));
$invoice->add(Am_Di::getInstance()->productTable->load($product_id));
$invoice->paysys_id = "paypal";
$invoice->calculate();
$invoice->insert();


I'm then sending them to paypal using this link:

https://paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=(the button id)

When the payment is complete, the system does not go to the thank you page and no payment is recorded...and I get this in the log - "Looks like an invalid IPN post - no Invoice# passed"

I'm sure the problem is in the link that I'm using to send my users to Paypal. Is there a function that I can call to generate the proper link?

When I create the button in Paypal it gives me this code:

Code:

<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="******MH5C852">
<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_subscribeCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
</form>

I used the ******MH5C852and put that into the "PayPal Button Item Number" field for the respective product.

I have it set up so that when the user clicks on the pay now button, I create the invoice and send them to this link:

https://paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=******MH5C852


This sends them to the correct page in paypal and allows them to make the payment which shows up in my account - but this does not send the correct data back to amember.

I do not see an "auto create" feature in paypal plugin (I'm using V 4.1.14 and the "Paypal" plugin)

After reading your post again and looking at the product page - you say this:

"if you want to use PayPal buttons, create button with the same billing settings, and enter its item number here"

There is no "Item Number" in paypal - there is a "Subscription ID" and I just tried to use that number instead of the *******MH5C852 and got the same results.

Still need some help here

Thanks

Looking at the receipt that paypal just sent me - it does label the "Subscription ID" as the "Item #"

Description:500 Credits, Item#: 46

But I had that number in the PayPal Button Item Number and it still didn't work.

and I still got this in the error log:

"Looks like an invalid IPN post - no Invoice# passed"

I was able to get this to work.

The connection between the amember and paypal and back finally makes sense. When you use a paynow type button you need to do a couple of things in amember that I described above with one addition. You need to create an invoice#. This is called the "public_id" in the invoice class and it is a 5 CHAR code (R3C8O). If you look in the invoice table you'll see it.

So your code should look like this:

PHP:

$public_id = Am_Di::getInstance()->app->generateRandomString(5, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890');
 
$invoice = Am_Di::getInstance()->invoiceRecord;
$invoice->setUser(Am_Di::getInstance()->userTable->load($user_id));
$invoice->add(Am_Di::getInstance()->productTable->load($product_id));
$invoice->paysys_id = "paypal";
$invoice->public_id = $public_id
$invoice->calculate();
$invoice->insert();


Now when you send your customer to paypal you need to include that invoice number, paypal treats this as a pass through variable:

https://paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=******MH5C852&invoice=R3C8O

Hope this helps somebody out.

Dear Alex and Indexer,

I have exactly the same problem but cant seem to make it work.

2 Questions:
- How can I include the invoice number when i send a customer to paypal? When I just add "

&invoice=R3C8O" to the link to paypal, obviously it won't work..​

- Do I just place the code​

"$invoice = Am_Di::getInstance()->invoiceRecord;​

$invoice->setUser($user_id);
$invoice->add(Am_Di::getInstance()->productTable->load($product_id));
$invoice->paysys_id = "paypal";
$invoice->calculate();
$invoice->insert();​

" into the "invoice.php"-file and everything will work automatically?​

Big regards,​

Julian​

I need would like to use paypal buttons on html pages to promote each product/subscription. An order went through today via a buy-now paypal button. The invoice log says
"Looks like an invalid IPN post - no Invoice# passed"

The paypal button's "hosted_button_id" is in the proper place in Products for the item.

Based on this thread, in order to use PayPal buttons and to get user names listed in the amember database, I need to place the bits of magic that Alex posted into the Invoice.php file that is in the folder: application > default > models?

If yes, at what line do I place the code?

If no, where exactly do I place Alex's bits of magic?

Edit:
I just saw this:
http://www.amember.com/forum/threads/paypal-in-front-of-amember.14963/#post-57650

I looked at my paypal plugin setup and I do not have "Accept Direct Payments" checked. Perhaps this is why the invoice did not pass and the person did not get added to the amember database?

(I am rather new at this and have not quite wrapped my brain around how it works)

Perhaps I should write my html pages and then direct the person to the amember sign up page?

Thank you Alex!
And I finally know what the PayPal Item Id is - I was using the wrong number.

I have a couple of questions.

Does selecting "Accept Direct Payments" create an all or none senerio in which all items will need to be purchased through a button? In other words if I select this, can I utilize both buttons and the sign-up page?

Assuming that I set this up correctly and the customers who purchase through a button are added to the amember database - Will the customer who buys through a button be prompted by amember to create a login at some point during the process?

Thank you Alex!