SingleFeed categorizes your products based off the "Category" field in your SingleFeed file. Those categorization values are input into each engines category field, i.e. "Become Category", "Shopzilla Category", etc. SingleFeed then sends out those categories to the engines based on the engine category fields. But often times the engines will take liberties with the products and put them in their own categories, different than what we send.
If you see undesired categories in your SingleFeed engine category fields, you can request to have those changed. We store those categories in our database which means you can't update them via your upload file. If you have just a couple changes, you can just email those to me like this:
Category X (this is the SingleFeed "category" field) should be in NexTag's category X.
If you have a lot of changes, you can input those into your import file and then get us that file so we can update our data base. You can either email the file (by replying to this email), or upload the file to your SingleFeed account (if the file is too big to email). If the latter, contact us and let us know the time and date of your import. We can then go and grab that file and make the necessary updates.
If however you see that the correct categories are in your SingleFeed file but they are incorrect on a shopping engine, that has to do with the engine taking liberties with your feed. To correct any engine mis-categorizations, you need to look at your feed and ensure you have valid UPC's and MPN's for your products, and that you have descriptive product names and descriptions. The engines use these fields to categorize your products, so if they are missing or of poor quality, this will likely explain the mis-categorization.
Any products missing categories means they are relatively new items that are awaiting categorization by our team. It usually takes about 7 - 10 days for us to categorize those items. When they are categorized they are then sent out to the engines.