Electronic parts are usually referred to by their MPN, or Manufacturer Part Number. However, many companies choose to introduce their own naming for parts used in their designs.
PartsBox supports two kinds of parts: linked parts (parts that are linked to a specific online identity: an MPN), and local parts. While local parts only use a local name, linked parts by default use the MPN as the part name.
In all commercial plans, linked parts can be renamed, or assigned a local/internal/company part number when created. As a result, PartsBox keeps track of two names: the MPN and the internal part number. Both are displayed in tables, and both are indexed by the search engine.
In the free plans there are no internal part numbers, and local names of all linked parts are forced to be the MPN.