Subchannels are channels located under a channel and they inherit all products of the parent channel. Subchannels don’t inherit channel settings or mappings. The main purpose of subchannels is to create feeds for eCommerce marketing and advertising platforms.
They are also useful when you want to send feeds to your resellers. You can change any settings such as pricing, inventory masking, inclusion, availability settings, and description or tags.
Go to Menu > Settings > Channels.
Select the channel you want to create the subchannel under.
Click on the "Add Subchannel" button towards the right-hand side of the screen which is under the relevant channel.
In the upcoming dialog box, you can see all the sales platforms or providers; select one option, and next, give your new channel a name and click create.