It is not possible to download invoices from the order overview

Hello,

We tried to reproduce it with HikaShop 6.6.0, Joomla 6.1 and the latest version of the PDF invoice plugin (5.1.1, there is no 5.2.0 so please check the version shown in the Joomla plugins manager): ticking an order and clicking on the Invoice button downloads the PDF straight away, in the same way as with HikaShop 6.5.1. That part of HikaShop didn't change between the two versions either, so something specific to your website seems to stop the request before it reaches the plugin.

Could you check these points?
- On your screenshot, the Invoice, Actions and Copy buttons look greyed out even though an order is ticked. Do they become active when you tick an order? If they stay greyed out, a JavaScript error is likely involved: press F12, open the Console tab, tick an order, click on Invoice, and give us what shows up in red.
- Does it work in another browser, or in a private window of Firefox with its add-ons disabled?
- Does the Invoice button at the top of the page of an order (when you open it from the listing) download the PDF?
- Do you use a security extension like Admin Tools, RSFirewall or similar? Such an extension can block the request and send you back to the listing. Try temporarily disabling it to see if it changes anything.

If none of this helps, please give us a backend access via our contact form so that we can check it directly on your website.

Hello,

Thank you for the backend access, we found the cause. Your orders listing is set to display 500 orders per page, and each order has its own status dropdown in the form. So when you click on Invoice, your browser sends a little over 530 values to the server. Your server's PHP configuration has max_input_vars set to 500, so PHP silently drops everything past the 500th value, including the one that asks for the invoice. HikaShop then only sees a request to display the orders listing, which is why the page just reloads. The invoice plugin itself works fine on your website.

You have two ways to fix it:
- In the orders listing, lower the number of orders displayed per page (the dropdown at the bottom of the listing) to 100 or less. The Invoice button should then work.
- Or ask your hosting company to raise the PHP setting max_input_vars to 5000 or more, so that you can keep displaying 500 orders per page. The other buttons of that listing that act on the ticked orders (Actions, Copy, Delete, Export) are affected by the same limit.