If one of your products shows as sold out and if you want to make it available again, you just need to increase the quantity in stock for that product. You can do that by editing the product in the "Products" section of your site editor at https://builder.portmoni.com/builder/websites/update/#products , and then changing the "Quantity in stock" for that product.
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> how do i add on a add on website when its sold out.