How do I change an item's Publisher on Amazon?
In the BookRouter Control Panel, under the 'Inventory' heading, click the 'Manage Inventory' link.
Step Two: Search for an Item
Search for your item by it's 'Item ID' (or Author / Title by clicking on filter icon)

'or' click on the filter icon to open advanced search filters.
It opens a sliding modal where you can search an item such as by Author/Title, etc.
Step Three: Access Item Settings
Click on the 'Edit' icon at the right side of your item.
Step Four: Open the desired tab
Click on the 'AMAZON' tab to open Amazon properties page.
Step Five: Make updates
Under the 'Product Details' heading, fill out your item's 'Publisher'.
Step Six: Don't forget to save
Click the 'SAVE' button to finalize the changes.