What should I do when "Bundles are not supported in Draft Orders."
Shopify Bundles are a new feature and Shopify does not allow apps to add bundles to orders right now https://community.shopify.com/c/shopify-apps/can-t-add-bundle-products-manually/td-p/2201164
The app will not be able to support bundles until Shopify fixes this. We'll keep a lookout for Shopify news and let you know once Shopify supports it.
We recommend that you manually create a Shopify order so keep track of this order on Shopify.