write_customer_trans_detail_item(ST_SALESINVOICE, $invoice_no, $invoice_line->stock_id,
$invoice_line->item_description, $invoice_line->qty_dispatched,
$invoice_line->line_price(), $qty ? $line_tax/$qty : 0, $invoice_line->discount_percent,
- $invoice_line->standard_cost, $invoice_line->src_id,
+ $invoice_line->unit_cost, $invoice_line->src_id,
$trans_no ? $invoice_line->id : 0);
// Update delivery items for the quantity invoiced