If this check box is selected, a purchase order must be entered. Clear the check box if the line is not to be based on a purchase order.

There are two possible scenarios:

Via purchase order is selected:	The software checks the purchase order and the purchase order line to determine whether the purchase was made for stocking purposes or for a sales or production order. This destination is automatically entered in the Type field. You cannot modify the field.
Via purchase order is not selected:	For parts: You choose whether to post to 'Sales', 'Production', 'Costs' or 'Unplanned production'. For equipment: The posting is to be made against the production order for which the equipment was purchased.

If the type is 'Production order', use these fields to record why the equipment was purchased.

If the type is 'Production order', the sales order and, where applicable, the sales offer are displayed for your information. You cannot modify the field.

This is the VAT code applicable to the purchase invoice line, for example 'Domestic purchase, high'. By default, the field is filled in based on the financial parameters. The VAT code field on the purchase invoice lines is an informational field and is independent of the VAT sums in the purchase invoice header.

This field shows the ledger account to which the costs will be posted.By default, the field is filled in based on the financial parameters.

To prevent a user from changing this ledger account, you can lock the field on the Financial form by selecting the Lock ledger account on purchase invoice line check box.

Initially, this authorization involves checking the purchase invoice lines. The details of the purchase invoice are compared with the details of the purchase order, as displayed in the Purchase order section. Isah then shows the result of this comparison in the Authorization field:

Total quantity invoiced higher than received
Price does not match purchase order
Discount does not match purchase order
Total amount invoiced higher than purchase order
Required cost center is missing	This message will only appear if the purchase invoice was imported using Supply Chain Integration, the Cost center required setting was enabled, and this information was not present on the electronic purchase invoice. Enter a cost center in order to be able to authorize the line.
Invoice line authorized:	This setting is the minimum setting required for processing the purchase invoice. This authorization also indicates that more receipts and purchase invoices are expected for this purchase order line.
Invoice line authorized; last invoice:	This setting indicates that no more purchase invoices are expected for this purchase order line. When the purchase invoice is processed permanently, the suspense accounts 'Commitments' and 'Invoices payable' are cleared once. When the quantities and/or prices on the purchase order differ from those on the purchase invoice, then those differences will be posted to the contra account 'Price differences'. If another invoice arrives, you can post the invoice for the purchase order in the usual way, after which the balance of the contra account 'Price differences' will be updated.
Inspect

It is possible to change the authorization type in this field in order to accept a difference in quantity, price or discount, so that the purchase invoice can be processed. You can also keep a line blocked, however, to prevent the purchase invoice from being processed.

To process a purchase invoice in its entirety, ALL purchase invoice lines must have the authorization type 'Invoice line authorized' or 'Invoice line authorized; last invoice'.

This is total sum of the current purchase invoice line. This field is automatically filled in based on the values of the Price, Discount percentage, and Discount fields. The sum is exclusive of VAT.

The VAT sum is calculated based on the total sum specified on the purchase invoice line and the VAT code entered on the line.

This is the sum (excluding VAT) already invoiced for the specified purchase order line. The field is filled automatically if a purchase invoice line has been created and processed for the specified purchase order line.

This is the total of the sum already invoiced for this purchase order line and the total sum of the current purchase invoice line. The sum is exclusive of VAT.

This is total sum from the original purchase order line. The sum is exclusive of VAT.

The Received field shows the quantity received (in the case of equipment, this quantity is never higher than 1). The Complete check box is selected when the receipt of the equipment has been confirmed as complete.

The Invoiced field shows the number of pieces invoiced for this purchase order line. The Complete check box is selected when the purchase invoice line has been processed, indicating that it was the last invoice line ('Invoice line authorized; last invoice').