WebShipper Integration Guide
If you are using WebShipper as your shipping system, you can use WebShipper workflows to set up rules & filters.
For example, you can remove the bundle line item of BYOB. The bundle item vendor is set to 'BYOB'. You can set up a filter condition based on the line item vendor.
For configurations, please contact WebShipper for hands-on support.
How to use workflows: https://webshipper.zendesk.com/hc/en-us/articles/360010179738-How-to-use-workflows