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Issues with bulk import

Bug Reports

Coming from deckbox I tried uploading an older version of my inventory. It started off well, mapping columns properly. It took a while to validate the file, which is expected, it’s not exactly tiny. There were thousands of valid lines, but also thousands of invalid lines. And here’s where the issues begin


  • It only showed 5 lines per page. Hundreds of pages. Not particularly reasonable.

  • Many of the issues were with the edition (e.g. “Collector’s Edition” vs “Collectors’ Edition”). It would be nice if all such edition mismatches could be solved at once for each such mismatch rather than one-at-a-time.

    • In some cases (such as “Mythic Edition”) i fixed the edition issue in the CSV, only to have it still fail.

  • Many of the issues were wrong collector number, but matched a unique card (e.g. Pyramids in Arabian Nights). Being able to pick up the correct card when there’s only a single match would be very convenient (maybe a checkbox to ignore collector number mismatches?)

    • I understand cases where there are multiple cards (such as Secret Lair), but when the card is unique this seems solvable programmatically.

  • Sometimes the card wasn’t found at all (e.g. Mana Crypt from The List). I was later able to add this card individually just fine. No idea why it didn’t show up when attempting to validate the import.

  • Some cases the card was found but fixing it made it invalid

    • I’ve got a french foreign black border card. When i fixed the edition it went from french (as marked in the CSV) to spanish. Okay, maybe you use a different edition, but if french isn’t a valid language for that edition, please don’t change the language. IMHO (i could be wrong), keep it marked as invalid and keep the marked language. This will at least clue me in that i need to look for a different edition to record it accurately.

  • Attempting to correct any of these invalid lines took multiple clicks, then the page had to think for multiple seconds before finally allowing me control to do more. I only got through a few pages before I just gave up.

  • I tried to import what was valid (plus the few invalid entries i had corrected), and after waiting for a bit
 nothing. Went back to the valid/invalid screen and zero items were imported. This is why this post is listed as a bug report.

I added a few cards via individual searching and filtering, and that was okay. But i’m not going to re-add my entire collection that way. I understand this is a beta. For people with moderately sized collections that they’re already tracking it may be a bit difficult to switch over. At least, that was my experience.

Separate feedback: please SAML federate the support site to the primary site so that people don’t have to create a second separate account just to get support.

Posted by Gf1028F65p9Q2G5IVfnO0e474 ·
Status: Completed10 comments

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Comments10

  • Gaultier Romon

    Team‱

    Sep 22, 2025

    Hey, I am sorry you had such a poor first experience trying to import your whole inventory, usually people do not run into those kind of trouble, but I must admin you raised some valid points.

    Would you mind sending me your CSV so I can replicate what you experience and come to you with actionnable items so you can complete your import ?

    Regarding the issues you raised, our team will be doing some improvements in the coming weeks to make the system better and better.

    • Gf1028F65p9Q2G5IVfnO0e474

      ‱

      Sep 22, 2025

      I’m willing to send it to you but would rather not post it to a public forum. Is there a way to DM, email, or upload it somewhere privately?

      • Gaultier Romon

        Team‱

        Sep 22, 2025

        gaultier@cardnexus.com

        • Gf1028F65p9Q2G5IVfnO0e474

          ‱

          Sep 22, 2025

          sent

          • Gaultier Romon

            Team‱

            Sep 22, 2025

            Received, will take a look tonight, thanks!

            • Gaultier Romon

              Team‱

              Sep 24, 2025

              Keeping you posted of the current progress:

              • I am in the process of finishing a new way that would allow you the expansions that are not valid so you can override those by the one we have in our database.

              • Already did a lot of improvements to make the performance better so it takes “only” 30~ ish to validate your CSV from the step map to check your results.

              • Regarding the collection number mismatch and the fact that those coming from your CSV are wrong, I now fallback to the name, but expect some Multiple matches error for the recent expansion as the name only cannot be trusted.

              • Added the vendorId like cardmarketId tcgPlayerId and scryfallId, scryfall being the most reliabke one because this is also the databse we are using to get the cards data. On deckbox you get those by doing an export and adding those additional properties (see screenshot enclosed)

              • For the wrong language / version of card and the way we have to fix those through the dialog, now you can pick the language of your choice when overriding no more default to the first language available.

              • Finally for the final crash, this should not happen and is totally a mistake on our end and I am working to make it as performant and reliable as possible, knowing that we built the system to onboard people with really big inventory so this should not happen.

              Overall, you helped a lot pushing through some of the limitations we had making the system as flexible as possible so it can work for every single tool, for every single game, that’s where the complexity is really.

              At the end of the day, many of the errors you have in your CSV are due to the fact that the tool you were using allow you to create wrong version of card that do not exist like Black lotus Alpha Foil French, those tools gives you flexibility but they are not to be trusted when it comes to being really accurate for your collection management.

              In the long run we are aiming to become a marketplace, and people’s inventory are going to be the root of the sale listing, so we cannot have people trying to sell stuff that do not really exists, that is why we made the system this way.

              I let you know once all of that is up and ready so you can give another shot to your import!

              Have a great day

              • Gf1028F65p9Q2G5IVfnO0e474

                ‱

                Sep 24, 2025

                I am aware that deckbox allows things that don’t exist, but that flexibility also allows them to store cards that most other sites don’t even know about which is part of why i’ve stayed there so long. I’ve tried a few other competitors over the years and always found them wanting and i don’t even have some truly unique things that people might want to track (i’ll put in a feature request for those elsewhere).

                Sounds like you’ve fixed a lot! I’ll give it another shot when i have some time. Thanks for responding.

                • Gaultier Romon

                  Team‱

                  Sep 24, 2025

                  I’ve fixed it but it is not currently deployed, so please wait for my go to give it a try :)

                  I understand your needs for flexibility but we cannot be that permissive otherwise it would lead to more problem down the line ^^.

                  A way to get around the really custom stuff, is to allow you to add comments on each card so you can at least have some kind of flexibility

                  • gf1028f65p9q2g5ivfno0e474

                    ‱

                    Sep 24, 2025

                    Thanks for the heads up. I’ll wait to test til given the go ahead.

                    I also understand. At the end of the day i’d rather a site by stricter with what it accepts if possible. I just haven’t yet found a site that can both be strict with what it accepts and understand the bulk of my very real collection. I have no problems if i have to adjust editions of various cards to better match what’s real (weirdnesses between “foreign white/black border” vs foreign 4th ed vs “renaissance” for example).

                  • gf1028f65p9q2g5ivfno0e474

                    ‱

                    Sep 24, 2025

                    This post seems to indicate a method of dealing with things i was thinking about (misprints, signatures, altered artwork, grading, and pictures):

                    https://feedback.cardnexus.com/p/sparkles-special-card-support

                    So i don’t need to open my own suggestion about that. Cool. I may open a suggestion related