Bundle builder

Hello

There is an issue with the bundle builder i built. Whenever a product is sold out, it fails to add the item to the cart without informing customers, simply stating 'failed to add item to cart.' This can negatively impact conversions, as customers will likely leave.

Perhaps there is a way to display any sold-out products and indicate this so users won't click on them when building their bundle.
You guys should work on this
Thank you.