I have a question on the same issue. Ebay changed my most used category and I now have 100s if not 1000s of listings that are now category ‘unknown’. In the absence of batch editor and or find/replace which is always greyed out, how can I modify all ‘unknown’ to a specific category?
it seems that eBay updated their categories so you have to re-select them.
At first, please refresh your eBay token in the GarageSale preferences > Accounts if not done recently.
Next, open the category browser and select “update categories” from the sprocket icon menu.
My only other question is the same one davidelliott is asking, about re-adding the categories back to my listings in bulk rather than 125 individual edits.
I had a similar problem too and the only solution was checking one by one. In my opinion implementing the search engine would be much useful for all, for example adding the possibility to look for a specific shipping/return/payment profile (this was my issue) or category as @davidelliott needs…
After much trial and error I have worked out that the Primary Category Number is 868 has been allocated to those items with category ‘Unknown’. (At least it is for me).