Variant is invalid

[tkgc]

I'm using shopify js-buy-sdk with react

i'm converting my variant id using Buffer.from(`gid://shopify/ProductVariant/${id}`).toString('base64') and providing it to

const lineItemsToAdd = [

        {variantId : id , quantity: parseInt(quantity, 10)},

      ];

and then -

  const checkout = await client.checkout.addLineItems(

        this.state.checkout.id,

        lineItemsToAdd

      );

but I'm getting this error

[daniel-florez]

Were you able to solve it? Did you enable the product to the proper Sale Channel?