OSP Service Item attributes, Cost?

Summary:

I’m looking for guidance on the correct attribute setup for an Outside Processing (OSP) service item in Oracle Cloud.

Specifically:

1. Is an OSP service item considered an inventory item?
   If not, how is it received against a PO?
2. Which item attributes should be enabled or disabled for an OSP service item?
   For example:
   • Inventory Item=??
   • Stockable=??
   • Transactable=??
   • Purchasable=Y
   • Outside Processing Item=Y
   • Costing Enabled=??
   • Invoice Enabled=??
   • Supply Type=??
3. Should we maintain cost for the OSP service item, or is defining a purchase price sufficient?

Any insights, best practices, or sample setups would be greatly appreciated!

Thanks in advance!