Field help (LINOCNDAT) 

This information is not accessible on the order line. When the date and number of the last acknowledgment of receipt sent by the supplier are entered on the Total section of the order, the order lines that do not have an acknowledgment date and number yet are automatically updated with the values entered.
When a line is modified or added, the acknowledgment date and last number (Total section) known are reproduced on these lines
Inter-company specificities
In the case of an inter-company or inter-site order, the date and number of the acknowledgment of receipt of each line are initialized, once the sales order has been generated, with the date and number of the sales order.