How to make feed for individual vendor?
CTX Feed plugin provides multi-vendor plugin support. This feature is only available in the premium version. You can choose any multi-vendor plugin from the list below and make a feed for individual or multiple vendors. In the product feed settings page, you will find a dropdown to select your vendor list to select.
Supported Multi-Vendor Plugins are below:

You can also watch a step by step video to learn how to make feed for vendors or multi vendor in the following video tutorial: