Creating an ATP rule

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You can create an ATP rule.

About this task

To create an ATP rule:

Procedure

  1. From the tree in the application rules side panel, choose Inventory Rules. The Inventory Rules window displays in the work area.
  2. Choose the ATP Rules tab.
  3. Choose the Create New icon. The ATP Rule Details pop-up window displays.
  4. Enter information in the applicable fields. Refer to Table 1 for field value descriptions.
  5. Choose the Save icon.
    Table 1. ATP rule details pop-up window.

    ATP rule field value descriptions
    Field Description
    ATP Rule Enter the ATP rule.
    ATP Rule Name Enter the name of the ATP rule.
    ATP Rule Information
    Past Due Supply Days Enter the number of days after which supply that is not received cannot be considered in ATP calculations.

    For example, if you do not want to fulfill orders on supplies that are overdue by 2 days, enter 2 as the parameter for Past Due Supply Days.

    Note: IBM suggests using a value of '730' initially. Evaluate the system's behavior and adjust this value higher or lower as necessary.
    Past Due Demand Days Enter the number of days after which demand for a product item is not considered in the ATP calculation.

    For example, if demand for a product item is delayed for longer than the requested ship date, you can limit the amount of time this demand can use up available inventory.

    Any demand that is past due for the number of days specified in this parameter is not included in ATP calculations for demand.

    Note: IBM suggests using a value of '730' initially. Evaluate the system's behavior and adjust this value higher or lower as necessary.
    Forward Consumption (Days) Enter the number of days future supply can be consumed to fulfill a current demand.
    Note: IBM suggests using a value of '730' initially. Evaluate the system's behavior and adjust this value higher or lower as necessary.
    Note: For tag controlled items, if demands are being matched against future inventory (purchase orders), during scheduling of a current order, the ForwardConsumptionDays is not considered. However, during an existing supply and demand reallocation the ForwardConsumptionDays is considered. This may cause a new order (refer to previous note) to be backordered because reallocation of other existing demand considers incoming supply only up to ForwardConsumptionDays. To avoid this, if possible, set the ForwardConsumptionDays in the ATP rule equal to the value defined in the "Maximum no. of days order can be shipped/delivered beyond its requested date" rule.
    Backward Consumption (Days) Enter the number of days to go back and check for available supply for a current demand.

    Demands are matched against the supply available on the same day. If there is not enough inventory available to fulfill the order that day, you can allow the system to consume inventory that was available several days back. You can determine how far back the system can check for available inventory before looking forward.

    Note: IBM suggests using a value of '730' initially. Evaluate the system's behavior and adjust this value higher or lower as necessary.
    Processing Time For Future Inventory (Days) Enter the amount of days it takes for inbound and outbound processing of a product item. This should also include special services such as gift wrapping, kit items, and special delivery.

    For example, if it takes 1 day to receive roses and store them in the warehouse and another 2 days to pick, pack, and ship them, then the processing time is 3 days.

    This parameter is used by the Schedule time-triggered transaction to determine if an order can be scheduled against expected supply.
    Advance Notification Time (Days) Enter the number of days in advance that a node needs to be notified to prepare an order for shipment.

    Release date is based on Advanced Notification Time. This is calculated as: <release date> = <requested ship date> - <advanced notification time>. An order is picked up for release if any line has a release date less than or equal to today. All other lines in the order with a ship date less than or equal to the lines satisfying the release date are also scheduled to ensure that they are shipped together.

    This parameter is used by the Release time-triggered transaction to determine when an order should be released to the ship node.

    Note: IBM recommends using a value of '0' for this field.
    Accumulation Time (Days) Enter the number of days for which a supply can be considered available for future demand.

    This parameter determines whether a currently available supply of a product item can be considered for future order fulfillment. This parameter must be set to less than or equal to the Backward Consumption Days.

    For example, if a purchase order becomes 'onhand' on 11/1 and this parameter is set to 10 days, the inventory from the purchase order is considered available until 11/11.

    Note: IBM suggests using a value of '730' initially. Evaluate the system's behavior and adjust this value higher or lower as necessary.