This is Max from the Shopify Team.
If you're looking to change the vendor name within the Shopify admin you can do this one at a time directly from the product page (Products > Products > click Product name). On the left-hand side under Organization choose a different option from the dropdown (this will include other vendor names previously/currently used) or type in a new label, add it and Save!
If you want to adjust more than one product at a time, check out the bulk editing feature.
If you're looking to remove the vendor details from your Online Store, this would need to be manipulated within the theme of your store! To accomplish this one of the following options should work:
I hope this helps point you in the right direction! Get in touch with us directly if you need some more info. ?
What about when you want to add additional vendors? I have several and need to add a new one. I tried it via the product bulk editing tool, however, it adds the new name to whatever product(s) you choose, however, you don't have the ability to choose it from the dropdown list of vendors on the product page itself. Why doesn't it add it? I can't remember how I did it to begin with. I am using the Debut theme. Thanks.