One master item
Photos, SKU, cost, source, and measurements live in a single record. Platforms inherit from it.
ResellTrav
Seattle listing desk
Crosslisting for a one-person closet
ResellTrav is the command desk for inventory that lives on eBay, Mercari, Vinted, Poshmark, and Facebook Marketplace — with prices that already know the fees.

Photos, SKU, cost, source, and measurements live in a single record. Platforms inherit from it.
Set the net you want to keep. ResellTrav back-solves eBay, Mercari, Vinted, Poshmark, and Facebook.
Mark a sale and the desk ends the other listings, then queues the marketplaces you still need to take down.
See dead stock past 30 days, profit after fees and COGS, and which closet actually pays.
Log Goodwill runs and estate lots. Tie SKUs back to the haul so tax season is not a shoebox.
Turn notes and photos into titles, descriptions, Poshmark hashtags, and eBay specifics — on demand.