From the channel dashboard, you can enable or disable entire categories, individual products, and even specific variations of those products.
Each category can be toggled on or off, and you also have the option to expand a category, allowing you to enable or disable individual products and even specific variations of those products.
If you have the SKU (Stock Keeping Unit) of a specific product you want to activate, simply paste the SKU into the "Search for product" field located in the top right-hand corner of your channel. After doing this, you will be able to locate and view the details of that particular product. It's important to note that if you input a variation SKU, the parent product associated with that variation will also be displayed.
Important: If you intend to publish any variations, it is crucial to activate the parent product as well. The parent product, identified by the bold Product ID, should be turned on, and all its associated variations will be listed directly below it. Failure to do so may result in your product not being successfully listed.
An alternative way to get your items selected for a specific channel or all channels in bulk is from the Catalog page.
Find more about this functionality HERE.