Q1: When I click the buy button, I get error message in popup window.

The message is:
SetExpressCheckout API call failed.
Detailed Error Message: Security header is not valid
Short Error Message: Security errorError Code: 10002Error Severity Code: Error

Answer1: PayPal Digital Goods extension require your PayPal account as business account. It is a PayPal constrain. You also have to change your PayPal payment solution as "PayPal Digital Goods (Express Checkout)". Here are few steps to check your PayPal account type and change your PayPal payment solution.

  1. Login your PayPal account and check your PayPal account type in "My Account" page.
  2. Click "profile" menu and go to "Selling Tools" page.
  3. Click "Get started" in "My business setup" in the first line.
  4. In "My business setup" page, you will find your payment solution. If it is not "PayPal Digital Goods (Express Checkout)", please click "change" and set it as "PayPal Digital Goods (Express Checkout)".

 

Answer2: Make sure that you have set the extension configuration properly. Before making PayPal Digital Goods extension working, you have to configure it with your PayPal API username, API password, and API signature. You can find how to configure it properly in PayPal Digital Goods extension user guide Configuration section.


Q2: How to upload digital product file which is bigger than 20MB?

When I add a new product and upload my digital product file in product manager, it always failed and gave me a message "Uploaded file size is bigger than 20M!"

Answer: For big files, we suggest you to upload them by ftp software, because it is unstable to upload very big file by HTTP upload. I am using "FileZilla" to upload videos to my server. You can follow these steps to do it:

  1. Creat a sample text file and rename it as same as the file you want to upload. For example, myvideo.mp4
  2. Add your digital product with this fake product file
  3. Open your ftp software and find out your extension Joomla administrator folder, the folder location will be /www/yourJoomlaSite.com/administrator/components/com_paypaldigitalgoods/pp_dg_upload/
  4. Upload and replace the face file with your real video file

Q3: How to change currency in PayPal Digital Goods Product Manager

I want to sell my product with Euro, but the default currency is USD. How can I change it to Euro.

Answer: You can change the currency in PayPal Digital Goods. But the user interface is not ready yet. You have to follow these steps to change the currency as Euro:

  1. Go to your website host root folder, locate the file: /www/yourwebsite.com/components/com_paypaldigitalgoods/controllers/checkout.php
  2. Edit the file and find the line: $currencyCodeType = "USD"
  3. Change it to: $currencyCodeType = "EUR"
  4. Save the file

Q4: I cannot download my 400+m file after I made the successful purchase. Why?

After I install, configure and upload my product with the extension, I can successfully make payment but I cannot download my video file which is bigger than 400M.

Answer:: First, you can test a small file such as txt file to check if the extension works properly on your server. If you can purchase and download small file, then it means the extension doesn't have any problem. The next step is checking if your server has some limitation for downloading big file. I have some clients who meet the same problem.