Rules

Picking Rules
When you define an item you choose a picking rule to determine the order in which revisions, lots, subinventories, and locators are picked for sales order. Oracle Shipping Execution submits requests to Oracle Inventory, which uses the information you enter in the Picking Rules window to generate pick lists for sales orders.

If you choose None for any of the criteria fields, Inventory ignores that criterion. For example, if you choose None for Revision, Inventory picks units of an item without regard to revision levels.

Oracle Inventory looks at the picking criteria in the order in which they appear in the Picking Rules window. Then, Inventory looks at the options (except for None options) for each criterion in the order in which they appear beneath each criterion.

To define a picking rule

1. Navigate to the Picking Rules window.

2. Enter a unique name for the rule.

3. Select an option for revision order:
Revision: Pick most recent revision.
Effective Date: Pick earliest revision effective date.
None: Do not consider revision levels in the picking process.

4. Select an option for lot order:
Expiration Date: Pick earliest lot expiration date.
Receipt Date: Pick earliest lot receipt date, the date you received items into their current location.
Lot Number: Pick lowest lot number.
None: Do not consider lot numbers in the picking process.

5. Select an option for subinventory order:
Subinventory: Pick by order defined for each subinventory.
Receipt Date: Pick earliest subinventory receipt date.
None: Do not consider subinventories in the picking process.

6. Select an option for locator order:
Locator: Pick items according to the picking order defined for each locator.
Receipt Date: Pick items according to the earliest locator receipt date.
None: Do not consider locators in the picking process.
  
To delete a picking rule
You can delete a picking rule if there are no references to it.

How to select earliest serial number in pick release

Q. How to select earliest serial number in pick release ?
Ans:
Per Bug 2231827 Inventory does not directly support this functionality. However, a workaround mentioned is as follows:

For a picking rule, set both subinventory and locator to use the receipt date. When using these settings, serial numbers will be ordered by receipt date. However, this is true as long as no back orders during pick release or ship confirm or any other subinventory transfer transactions are performed. When these types of transactions are performed, the receipt date is altered and so the serial numbers will no longer appear in serial number order.
An enhancement request has also been logged for this issue.  Please see Bug 3163819.

R12 Picking Rules

In R12 Picking Rules screen and logic got changed. Above screen shots and details are provided from 11i. Please refer R12 Inventory User Guide.