Thank you for your feedback. I apologize that you've found our inventory system so frustrating to use. We've made a few updates to our product since your first post that should hopefully help to make it easier for you to manage your inventory in ShippingEasy.
Firstly, we recently made an update to our products CSV export/import so that it now includes an "Active" column. This column will denote if an SKU is listed as active or inactive in the ShippingEasy product catalog. Though you can't yet restrict our product export to only include your active products you can now filter the exported report using this new column.
Secondly, our development team has started work on adding 2-way inventory support for Volusion stores. Though this is still in the early development stages once this work has been completed you should no longer need to export your products and inventory levels out of ShippingEasy. We will instead be able to send automatic updates back to each of your stores whenever your stock changes in our system.
I will update this thread again once we have launched our 2-way inventory support for Volusion. In the meantime if you have any more questions or concerns please feel free to comment back on this post.
Tessa Hadobas [Product Manager]