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Lotdesk

Bring your sale with you from Auction Flex

A sale you started in Auction Flex does not have to be typed again. Lotdesk reads the spreadsheet and the photographs, and shows you what it understood before it stores a single lot.

What comes with you, and what does not

Comes with the saleStays where it is
Lot numbers, sublots like 27A includedBidder records and registrations
Titles and descriptionsInvoices and what was paid
Quantity and categorySettlements and payouts to consignors
Start bid, reserve, low and high estimateAnything that happens after the hammer
Consignors, by code or by nameThe platform's own account and settings
Photographs, matched to lots by file name

This reads files you give it. It does not log in to Auction Flex and does not change anything there.

How it goes

  1. From Auction Flex, take the sale's lots out as a spreadsheet (CSV or Excel) and gather the photographs into a ZIP, named by lot number like 771-1.jpeg.
  2. Open the sale in Lotdesk and use the link on its page for bringing a file in. Choose the spreadsheet and, if you have one, the ZIP of photographs. A spreadsheet can be up to 5 MB and a ZIP up to 50 MB; a bigger set of photographs goes in over two goes.
  3. Read the preview. Lotdesk says whose file it thinks it is, shows every column and the field it will fill (change any, and ask again), and shows the first 10 lots exactly as they will be stored, with how many would be added, changed, left alone and skipped, and why. Nothing has been stored yet.
  4. Press import. The report says in plain sentences what was read, what was used, what was skipped and what became of every photograph.
  5. If it is not what you wanted, undo the whole import. That is possible for 30 days and takes back the lots, the photographs and the sections and consignors it made.

Lotdesk recognizes the headings of the Auction Flex inventory import (Lot#, Consignor/Vendor Code, Lead/Title, Description1, Total Reserve and the rest) and the plain names of the Auction Flex 360 template. Auction Flex's export screens are its own and differ between versions, and Lotdesk has not been run against an export from yours: if the headings differ, the file is still read and the preview lets you point each column at its field.

Before you press import

The rules it follows

What the Auction Flex formats rest on

StatusWhat it saysWhere it comes from
Vendor documentationThe desktop Inventory Import reads a CSV. A Consignor Code that already exists in Auction Flex and a Lot # (or Inventory #) are required; a row whose consignor code is unknown is skipped.Auction Flex help center, Inventory Import, dated 2025-07-11
Vendor documentationPhotographs come in as a separate step, matched to lots by file name.Auction Flex help center, Inventory Import, dated 2025-07-11
Third-party accountThe twelve columns and their order for the desktop import: Lot#, Consignor/Vendor Code, Lead/Title, Description1, Quantity, Ship, Full Category, Start Bid Each, Total Reserve, Min Est Each, Max Est Each, Long UDF1.Lot Lingo's guide to importing into Auction Flex, a third party's tool
Third-party accountPhotographs named like 771-1.jpeg; more than 1,000 images split across folders.Lot Lingo's guide, a third party's tool
UnverifiedLong UDF1 carries the condition note. Auction Flex has no condition field, so this is Lotdesk's choice; any user-defined long field would do.Not published by the vendor
Vendor documentationAuction Flex 360 reads a CSV only, from a template at Lots, Import Lots, CSV Template. The Seller Code maps the consignor, a field-mapping step matches your headers to its fields, and photographs are named 1-1, 1-2 (1.1 and 1_1 are also read).Auction Flex 360 help center, Mass Import Lots & Images, dated 2025-10-31
Third-party accountAuction Flex 360 limits a title to 50 characters on bulk import.AuctionWriter's guide, dated 2025-03-11, a third party's tool
UnverifiedThe Auction Flex 360 template's own header names are behind a login, so Lotdesk writes plain names and the field-mapping step matches them.Not published. Per the vendor's published documentation; check against your own import screen.

Date these sources were read: 2026-10-01. A format can change without notice; if your import screen shows something different, trust your screen and tell us.

Open a book — free for your first 25 lotsLook at the sample sale first