You build other companies' designs. You hold consigned parts for several clients, run their BOMs, and answer for what you used. PartsBox separates client-owned stock from your own, tracks every reel and lot, controls purchasing per client, and gives each person the right level of access.
Consigned parts sit on the same shelves as your own, and wrong stock is used when building. Reels and cut tape are counted as one number, so you cannot tell what is usable or what was already sent to the floor. When a client asks what went into their build, the answer takes a day of searching records. A part shipped to you on a reel gets mixed with the same part bought for another job.
Tag stock by client, then filter purchasing and builds so a job uses only the right parts. Stock consigned by one client is never spent on another client's build. When the client's design allows alternates, a build can use whichever approved part is in stock, so a job is not blocked by one MPN being short. Keep reels, cut tape, and batches as separate lots, each with its own quantity, location, and per-lot cost, so a build costs what it actually consumed. See what is on hand locally and what was shipped elsewhere. Trace every assembly back to the lots it consumed, forward and backward, and give a client a clean record of their job.
Give buyers, operators, and clients roles that match their work, including read-only access for a client who only needs to watch. PartsBox manages parts, stock, BOMs, lots, and purchasing. However, it is not a shop floor scheduler and not an accounting system.
Start on Control. It adds lot control, serial numbers, and role-based access, which is what separating clients, costing jobs, and tracing builds requires.