Intuitive ERP allows complete "cradle to grave" serial number traceability throughout the system. You can create a multi-level Bill of Serial Numbers, so that you can maintain complete tracking of which serial number is within which assembly, and where the ultimate assembly was shipped. Then, you can track the warranty and ownership of those parts through the Service & Repair module. Maintenance of these BOMs is simple; you can add and remove serial numbers, move them as required, etc., and a complete history of all transactions is maintained.
You can also designate the level of tracking you would like for each item. Items may be specified as fully tracked (entry required each time this item is transacted), referenced (not tracked though inventory, but included on a BOM of serial numbers and/or when shipped as a service part), or shipment tracked (only traced when shipped out).