As you perform move and completion transactions, the system automatically backflushes pull components not under lot, serial number, or lot and serial. Reversing these transactions returns backflushed components back to their subinventories. See: Backflush Transactions

Pull components under lot control can also be automatically backflushed if the Work in Process parameter Lot Selection Method is set to one of the automatic methods, and there is sufficient inventory. Components under serial number or lot and serial control require manual entry of the applicable lot and serial numbers. See: Lot and Serial Number Backflushing.

Operation and Assembly Pull components are not automatically backflushed when you complete assemblies at an operation or complete job or schedule assemblies into inventory if:

• The operation that assemblies are being completed at is not a backflush operation

• The components are under serial number or lot and serial number control

• The Work in Process parameter Lot Selection Method is set to Manual

• There is insufficient inventory in the supply subinventory

  Note: Backflush transactions that do not complete because there is insufficient inventory can be resubmitted using the Pending Transactions window in Oracle Inventory. See: Viewing Pending Transactions.

Pull components that are not backflushed can be manually issued using the WIP Material Transactions window. See: Issuing and Returning Specific Components.

Prerequisites

• If you want the ability to over or under issue pull components for assembly moves, completions, and mobile work order-less completions - enable the Allow Quantity Changes During Backflush, in the Work in Process Parameters window. This gives you the ability to make changes to the quantity for components requiring lot and serial number entry. See: Material Parameters

• To default lot numbers when there are multiple backflush transactions for the same component on the same job - set the Lot Selection Method parameter to Transaction History, and choose a value in the Alternate Lot Selection Method parameter. This enables you to retain lot numbers used in the previous transaction.

   To backflush or return backflushed components under lot, serial, or lot and serial control:

1. Perform a move, scrap, reject, or assembly completion to display the Backflush window.

   The Backflush window automatically appears only if you are backflushing lot or serial controlled pull components.

   In the Item field, records requiring additional information for lot or serial number are highlighted in the color red. If an item needs serial number information, the Lot/Serial button is enabled as Serial. If an item needs lot number information, the button is enabled as Lot.

   This window displays item information such as Description, Available, On-hand, Operation Sequence, Department, and Transaction type. There are also fields displaying information if the item is using dual unit measure control:

   • Secondary Available - the quantity available to issue in the secondary unit of measure

   • Secondary On Hand - the current on hand quantity in the secondary unit of measure

2. You have the option to select another Subinventory and, if required, the supply Locator. See: Supply Subinventory and Locator Fields

3. You have the option to select another unit of measure in the UOM field.

   You can use any valid, alternate unit of measure for the component you are backflushing. See: Overview of Units of Measure.

4. In the Quantity field, the default is the required quantity. If you have enabled the Allow Quantity Changes During Backflush parameter - you can change the quantity. Otherwise, you must transact the Quantity Required value..

   If you are transacting components in their primary unit of measure under lot control and the required quantity is a non-integer, you can only transact up to the largest integer. If you enter an alternate unit of measure for the assemblies, you must enter the transaction quantity in the alternate unit of measure.

5. For lot controlled items, select a value in the Lot field.

   For items under lot and serial control, the Lot/Serial button is enabled to select lot ad serial number values.

   If the Lot Selection Method parameter is set to Transaction History, you can default lot numbers from previous transactions for the same component on the same job.

6. Optionally, select the Reason code. See: Defining Transaction Reasons.

7. Optionally, enter the transaction Reference.

   References can be used to identify transactions on standard reports. They can be up to 240 characters of alpha numeric text.

8. Choose the Lot/Serial button to assign lot and serial numbers.

   If the item is under lot and serial control, the button is first enabled as Lot to access the Lot Entry window. After the lot information is entered, the button is then enabled as Serial to access the Serial Entry window. See: Assigning Lot Numbers and Assigning Serial Numbers.

9. Choose Done to save your work.