Hi Benjamin,
the invoice template file has a variable "var.order". The print.php file shows that this order number
is fixed to 05123456.
Is this right so far ?
Yes, that's right.
The invoice extension should be called beta, as there are minor things like that and after all it only works with PDO, not with a native MySQL connection.
Is it planned to establish an order number to kimai or do I have to add such a field by myself to
let the invoice extension read the order number from the database to activate order / customer
numbers for use in the invoice ?
I'm currently not planning to work on this extension. But perhaps I will add a field so you can set the order number. If you implement something like this I would be happy to see it and perhaps add it to the official version.
Best Regards,
Severin Leonhardt