nicolas wrote: I'm not able to access your link. I'm getting redirected to the page
www.elster.de/eportal/login/softpse
...
That is ... strange.
nicolas wrote: The order number is added as the sales order id:
docs.peppol.eu/poacc/billing/3.0/syntax/...ce/cbc-SalesOrderID/
The order invoice number is added as the invoice id:
docs.peppol.eu/poacc/billing/3.0/syntax/ubl-invoice/cbc-ID/
So I don't think there is a problem there. Please double check.
Erm ... no. You got me wrong.
Please look at my first screenshot (hika1)! Here you find two marked numbers. This is NOT the invoice number. The invoice number (on this screenshot) is on the upper left side (first entry). In the screenshot both numbers are the same. But in many cases you want to have different number schemes. In the screenshot the - correct - sales number would be the field with the value "NA".
nicolas wrote: Please note that the plugin output invoices for orders already paid, so it is normal that the payment data is empty and the amount due is 0 since the customer already paid on your website with a normal payment method like PayPal.
Erm ... no?

What if the customer make a purchase and choose "bank transfer" for payment. In this case the purchase remains open until the seller receives the payment and changes the order status. Right? This is exactly what I tried. My test purchase has still the order status "open" - so it's _not_ paid. So the total amount due is _not_ 0,00.
nicolas wrote: Regarding the product codes, please note that you need to fill in the setting "Tax category code field" of the plugin with the column name of a custom field of the table "product", and that in each product, you provide the tax category code in that custom field.
Hm ... maybe we talk about the wrong code. Maybe it's the "item number" or "product number" (auf Deutsch: Artikelnummer).
Or should I use the "item identification field" for this purpose? Not sure ...
nicolas wrote: Regarding the company name and email missing for the supplier, please note that you have corresponding fields in the settings of the plugin that you need to fill in so that they can be present in the UBL file.
Please review the settings of the plugin. You can click on the "toggle inline help" button at the top to get to see the instructions for each field of the plugin. That might help you fill in the settings properly.
Please note, that the information are present in the ubl file. But only on one of two data fields. The problem is, that the information is partly in one data area und partly in the other. It seems ... divided. Look at screenshot 2 and 3. no 2 show the first data block - here the company name is missing - but all other data is present. screenshot no 3 shows the second data block - here is the email address missed (for seller (verkäufer) and (buyer (käufer).
Maybe there are two types of these fields?