Hey, @jonty !
I’m Helen from Shopify Support, here to help you today.
Adding new vendors and assigning them to a product is done from within your Shopify admin. To do this, please click on Products on the left hand side of your admin dashboard. Once on the product page, the vendor is found in the Organization section on the right side of the page.
To add a new vendor, simply type the vendor name in the box, and click ‘Add’, as seen in the screenshot below. Don’t forget to click SAVE before navigating away from the page!
If you would like the vendor to show on the product page of your storefront, this can be enabled from within your Minimal theme. To do so, please navigate to your theme editor by going to ‘Online Store > Themes > Customize > Product Pages,’ and put a check mark in the ‘Show product vendor’ box. It looks like this:
Showing the vendor name is an option that you can enable on the Collection pages within your theme too.
Allowing your vendors access to their own account to track the sales and payouts for their items is not a feature native to the platform, but it can be accomplished by using the Vendor Consignment app. This app creates individual vendor profiles and allows you to pay your artists directly via Paypal. It is beneficial if you are selling the products on behalf of the artists.
Alternatively, if your business model is more of a marketplace where vendors have their own space on your site to sell their work, the Multi Vendor Marketplace app is the one to use.
Both apps are developed by a third party, so if you have any questions about their features or functionality please contact the developer directly.
Both apps also have free trial periods associated with them. I recommend that you install them on your store, and use the trial time to determine which is right for you. Once you’ve made a decision, uninstall any apps you do not want to use before the trial period is over, to ensure you are not charged for it.
Let me know if you have any more questions.