Hi. I'm new to gog. I have connected my steam account to gog account, and then this message appeared:
"NO ELIGIBLE GAMES FOUND"

Is gog connect only available during sales? And the eligible games are time limited?

all items offered through GOG Connect are of a limited time
they seem to come up most often during large sales (usually with a button linky thing
to take you directly to the connect page)
though sometimes they come up with the release of game(s) on gog


edit: Welcome to Gog

Thanks, I don't know anything about gog. Need to browse and explore it to learn the basic stuff.

I advise taking a look at the FAQ I've put together.
https://www.gog.com/forum/general/forum_faqs_new_to_the_forum_click_here/page1

OK, thanks.