You can add a product to a new sales channel in a number of ways.
You can either click the "+ sign" next to the channel icons on a product row.
Or, you can click the Actions dropdown (the 3 dots) and select "Manage channels".
Either way, you'll be taken to a modal that allows you to choose what sales channel you want to add the product to.
Use the checkboxes on the left-hand side to select multiple products. Then at the bottom of the page, you'll see a bar appear that allows you to take bulk actions. Click the button that says "Add a channel".
You'll see a similar modal to the individual one, which allows you to select one channel to add the product to.
Add channel workflow
Once you select a channel to add the product to (individual or bulk), you'll be taken to an "Add channel workflow". This is simply taking you through some necessary steps to get the product listed on the chosen sales channel.
For example, Etsy requires you to answer questions "About this listing", and we help you add these quickly and easily.
Channel specific help guides for the "Add channel workflow"
Once you've gone through the workflow, simply click the "Publish" button on the last step and your product will be made active on the sales channel.