If the product offering is updated regularly (ex. meal subscriptions with a rotating menu) use the automatic reset option and create fallback contents for your bundle.

After each renewal, automatic reset removes the customer contents. If new contents are not made before the next cycle the fallback contents are applied. Orders are tagged to identify present orders for visibility.

If the bundle is not configured with automatic reset the customer receives the same content as the previous billing cycle. 

Review Bundles orders created without contents for more information to resolve orders without contents.