The patch is below, but I can send it somewhere else if needed. This is my first code submission, so please let me know if there is a better process to follow.

diff -up ./po_entry_items.php.bug343 ./po_entry_items.php
--- ./po_entry_items.php.bug343    2011-07-24 22:24:38.000000000 +0200
+++ ./po_entry_items.php    2011-07-24 22:29:03.000000000 +0200
@@ -209,6 +209,9 @@ function handle_cancel_po()

function check_data()
{
+    global $allow_negative_prices;
+    $is_inventory_item = is_inventory_item($_POST['stock_id']);
+
    if(!get_post('stock_id_text', true)) {
        display_error( _("Item description cannot be empty."));
        set_focus('stock_id_edit');
@@ -225,7 +228,7 @@ function check_data()
           return false;
     }

-    if (!check_num('price', 0))
+    if (!check_num('price', 0) && (!$allow_negative_prices || $is_inventory_item))
     {
           display_error(_("The price entered must be numeric and not less than zero."));
        set_focus('price');

Is this now working for non-inventory items?

This is what I'm searching for too, to be able to put a line on the "invoice" with "-", which is not related to an invoiced item.
The total amount will be not negative, it is still an invoice.
If a special discount is not already deducted on the invoice, you will create admin-work (people forget to deduct, pay the wrong amount, ask for the special credit, you have to pay back the diff., or they don't see the sep. credit and ask for a new invoice etc.)

Thanks,
ernie

Janusz

we dont want to risk our accounting by editing something in the php file that wil make it able to make negative amount for non-inventory items.

we hope u wil put it in the next release or in mean time know how we can edit this version without risk side effects in GL

Gr Geert

Janusz

and it would be nice if there wil come a pos in FA so u can make quick invoices with touchscreen for example with customers in my real store.

example
http://www.fileguru.com/Retail-Man-POS/screenshot
http://www.avdsn.com/images/pos1large.jpg

Can u let me know plz when new version is out and if it has this new function in it.

I know this is not the way i know i have to put a new post but i have one little question, is front accounting working on a POS system ( point of sale)

greets Geert

Thnx for the reply.
Yes it would be perfect if u can do this in the next release for non-inventory items.
In mean time we wil try to fix that line u said.

Do u know around somewhere when the next update wil be a fact

Thnx again and i let u know.

greets Geert

Thnx for your reply.
But its not working properly if you only can make a credit for things people buy.
Did you read my example in my post here above? then you will understand the reason for this function.

I work with lots of accounting software because we have lots of customers using differtent accounting software programs.
But front accounting is the only program i know that does not have the option for a negative amount in a invoice.

Can u plz tell me that you consider to put this in one of the next updates, or tell me where do ajust the php files so we can do it our self

Here in the netherlands its normal to do that.

Plz read my example with the reason for this negative amount, because the call cost of 750 euro is not something my customer first buys so i can make a credit for it you understand. its just a part of the minutes.

I have lots of more situations where i better have a negative amounts for a product but the above is the most important.
Like when a customer buys some products of us i want to show him a fixed discount in stead of a procentage.
example:
- website pro with paypal     € 1500
- implementation module     € 100
- introduction discount         € -50   ( u see here i want to make a product line with negative amount BUT i cant do that now)
_____________________________
TOTAL:                              € 1550

Thnx for your reaction and i hope you can help us.

regards

Geert de Graef
Shopimport

Janusz