Sequence numbers on purchase orders

Sequence numbers are used if more than one receipt takes place on an order line. More than one receipt can occur, for example, with backorders.

Consequently:

If an Order Line is generated in the Purchase Order Lines (tdpur4101m000) session, the purchase order line's sequence number is one.
If an order line is split or a backorder is generated for the order line, the order line changes to a Total line in the Purchase Order Lines (tdpur4101m000) session with a sequence number of zero. The sequence number for the line details of the split purchase order line (line type Detail), or the backorder line (line type Back Order) are greater than zero.

Example

Adding an order line:

Sequence number	Order quantity	Planned receipt date
1	100	14/12

Splitting of the order line:

Sequence number	Order quantity	Planned receipt date
0	100	14/12
1	80	14/12
2	20	21/12

Assume that you must modify the order quantity. The sum of the order quantities can be lower than the total order quantity. If you save the order line, the total order quantity is updated.

After receipts are performed:

Sequence number	Order quantity	Planned receipt date	Received quantity	Backorder quantity
1	80	14/12	70	10
2	20	21/12	0	0
3	10	28/12	10	0

Sequence number 3 is of the Back Order line type.

You must evaluate the backorder quantity. If you agree upon a backorder, you can specify a receipt date for this backorder. If for that receipt date a sequence number already exists, the backorder quantity is added to the order quantity of that date. If for the specified date an order quantity is not yet available, a new sequence number is created. LN also checks if the delivery address and the ship-from address match.