If you are looking for an Inventory Manager with Multi Level BOM capability without the associated running costs of an overweight ERP/MRP system then you really should take a closer look at miniMRP.
miniMRP includes purchasing, customer orders, work orders, multi level bills of material, shortage forecasting and many other MRP features in an easy-to-use Inventory Manager costing less than $200 per user. Perpetual licence - buy once use forever
Download a free 30 day trial. If you need longer we can extend your trial period up to 90 days.
The trial version is fully functional - Enter as much real data as you want - any data you create during your trial is not lost once you purchase the fully licensed software.
miniMRP may look like a small package but that's because it doesn't waste space on the features that nobody uses anyway.