Step 2: In the "Wholesale Customers" tab, click on the "Hamburger Menu".
Step 3: Select "Create/Update Sales Channels".
Step 4: Enter the Sales Channel Name.
Step 5: Click "Create Sales Channel".
Step 6: Once the sales channel is created, Click "Map".

You can also delete a sales channel by clicking the (x) sign, but only if it's not currently mapped to any B2B customer.
Step 7: Download the template.
Step 8: Add the Sales Channel in the Sales Channel column.
Step 9: Click "Upload CSV" and choose the sheet.
Step 10: Click 'Upload".
Step 11: Go to "Import Section' to check the status of the sheet.