The flow describes the arrangement of new purchase order and return order, as well as change and cancellation. Return orders are handled as a customer order type in LXIR and as a purchase order type in the EWS. Everything that is called the purchase order or row below also applies to return orders.
Purchase orders are called Call-off orders in LXIR.
Addition of new purchase order line / return order line cannot be done.
Change of purchase order / return order can be made. This occurs when changing the delivery date and or number. Cancellation can be made by full purchase order / return order but not line. However, cancellation of the purchase order line / return order line takes place during partial storage as the old line is replaced with a new one and this in order to reduce the risk of mis-storage. If DELVRY arrives at the ready-marked line, it must be rejected and alerted.
No feedback is made from the EWS in addition to the submission of registration.
A PURORD does not have to mean that there will be a DELVRY in response to all purchase order lines / return order lines, but the answer to these can come in several separate DELVRY messages. This happens when certain lines in a PURORD are answered but not all simultaneously. There should be no more answers with reference to the same POR and associated sequence number in different messages. If this happens, the answer must be rejected and an alarm added to the error log. On the other hand, there may be several answers to the same purchase order line / return order line and sequence number in the same message.
LXIR EWS only works with balances, not the term "be".
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