Inventory item – end of life
Start by customizing your item record to have a boolean checkbox field for “EOL” “Discontinued”.
Next created an item saved search that will filter out these items from your results.
You will then use this search to filter the item drop down on the Purchase Order form.
You can find a more detailed steps in SuiteAnswer Answer Id: 9048
You can take this a step further and create a schedule saved search that will alert you when an item is EOL and has zero on hand quantity.
Take that list and inactivate the items to further prevent ordering and keep your catalog tidy.