Refurbished electronics inventory software with grading built in. When a unit comes back or comes in as B-stock, change its condition, log the parts and labour that went into it, and relist it at the right price — per-unit profit follows the unit.
A unit comes back with a cracked screen, gets a part replaced and a "Grade B" sticker, and goes back on a shelf. When it sells six months later, the inventory system still thinks it is the original A-grade unit at the original cost, so the P&L is approximate and every decision built on it is approximate too.
Condition isn't a column — it's a workflow. A unit's grade can change two or three times over its life, and none of that survives a spreadsheet or a year-end audit.
Every physical unit has its own record. When you change the condition, log a service cost, or move it between locations, that history is attached to the unit and persists for the unit's entire life.
A tech scans the serial on a tablet at the bench, logs the parts and labor against that specific unit, and changes the grade — the cost basis updates automatically, so when the unit sells the per-unit profit is calculated from the real cost, and a per-serial-number report is available any time. Refurbished units get their own segment in the reporting, so which models earn back their service cost and which don't stops being a gut call.
A system that records the condition of each physical unit — A, B, C, D, or your own scale — with an audit trail of every change, and that ties service costs and resale price to that grade. In Rilk the grade lives on the serial, so it survives returns, re-listing, and year-end audits.
No. Phones are the most common case, but the same workflow runs laptops, tablets, consoles, cameras, and any serialized consumer goods.
Back Market with A/B/C listings, Amazon Renewed, eBay refurbished categories, and your own store — from one graded stock pool, so a B-grade unit listed in three places sells once.
Free tier, no credit card required.