Can anyone please tell me the proper file settings, image sizing and output sharpening when using the Lightroom Publishing Manager for Facebook?
There's no "best" or "proper", it all depends on what you want.
Under Image Sizing, I believe you want to set the long edge to 2048 pixels or smaller (I don't think Facebook accepts larger images). Sharpening is a personal decision, try several different settings and see which one you like best.
Thank you for the response. Any recommendations for Instagram?