Build a Consignor Self-Service Portal for Consignment Shops

1. 1

   Sit in a consignment shop for a day

   Count the consignor status calls and walk-ins the staff handles. That count is your sales pitch, and the questions asked are your feature list: what sold, for how much, what is my balance, when do I get paid, what happens to unsold items.

2. 2

   Pick your integration posture

   Decide whether you import from the popular consignment POS systems, from exported spreadsheets, or both. The spreadsheet-run shops are your easiest first customers because you replace nothing; you just give their consignors a login.

3. 3

   Build the smallest useful portal

   Consignor login, item list with status, sale prices, running balance, payout history, and an automated email when something sells. Resist building a full POS; the wedge is the portal, not the register.

4. 4

   Price under the incumbent upgrade

   If moving to a portal-included tier of a big platform costs the shop an extra $100 or more a month, a $29 to $79 add-on that works with what they have is an easy yes. Charge the shop, never the consignors.

5. 5

   Sell shop to shop, then through the grapevine

   Consignment owners know each other through resale associations, Facebook groups, and conferences. A few genuine testimonials about fewer phone calls travel fast in a niche this tight.

6. 6

   Expand into payout automation

   Once trusted, add ACH payout batches, consignor tax summaries, and end-of-season unsold-item workflows. Each added workflow deepens the moat and justifies the next pricing tier.

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