Hi, I've found a bug in the Billing module (ispconfig3_billing_addon_2.0.1), where invoice_item_template_id is not duplicated inside invoice_item upon invoice creation. I've fixed it by editing create_recurring_invoices.php and replacing line 409 with: $invoice_item_template_id = isset($rec['invoice_item_template_id']) && $rec['invoice_item_template_id'] ? $rec['invoice_item_template_id'] : 0; Is there any way to contribute this change officially?
Thank you for the bugfix, I'll include it in the next release. Please send bugfixes or contributions directly to support at ispconfig dot org