Adjust Shop Order Need Date to Demand
Explanation
Use this activity to automatically update the need date of a shop order to the date/time when the projected
quantity goes negative for the shop order part. If the part has Plan Manufacturing Supply on Due Date
enabled, the need date will be updated considering both the date and time of the earliest demand where the
projected quantity goes negative, else only the date is considered.
The demands considered depend on the following conditions:
- For a shop order with the Demand Source set to Invent Order that is not
pegged to any demands, the logic will consider inventory-supplied demands without pegging.
- For a shop order with the Demand Source set to Invent Order that has been
pegged to demand(s), the logic will consider only the demand(s) to which it is pegged.
- For a shop order with the Demand Source set to DOP Order, the logic will
consider only the demand(s) within the DOP structure that the DOP order(s) pegged to the shop order are expected
to supply.
The calculation will also consider below parameters set on the Inventory Parts Intraday
Availability page:
- Include Only Firm Supplies - Only supplies classified as firm are considered. Firm supplies are shop
orders, purchase order lines and similar. Non-firm supplies such as purchase and shop order requisitions are
ignored.
- Include Only Firm Demands - Only demands classified as firm are considered. Firm demands are customer
order lines, shop order material lines and similar. Non-firm demands such as MRP planned demands are
ignored.
- Include Usable Qty in Balance - The usable on hand quantity in stock is considered as the starting
balance when calculating the projected quantity, if cleared, the logic will use 0 as the starting balance.
To adjust the need date of a shop order to demand, first open the Inventory Parts Intraday
Availability page and expand the line for the relevant part. Then select the shop order to adjust and click
Adjust Need Date to Demand.
Prerequisites
- An open shop order with Demand Source set to Invent Order or DOP Order must exist.
- The shop order type must not be Disassembly.
- A projected negative balance for the shop order part must exist prior to the shop order due date/time given
the above mentioned parameters controlling the balance calculation.
System Effects
- The shop order will be updated with a new earlier need date. If the part has Plan Manufacturing Supply on
Due Date enabled, also need date time will be updated.
- The Scheduling Direction of the shop order will be set to Backwards Scheduling, and the order
will be rescheduled with a new start and finish date that meets the new need date.