LinkedIn

Connect	One-click OAuth
Post kinds	text, image, multi_image, document, video
Caption limit	3,000
Max media	300 (document pages)
Media required	No
Video	Up to 500 MB, 3s to 30 min, h264 and aac

Connect

Settings, then Connections, then LinkedIn. You are redirected to LinkedIn, you approve, you come back connected.

Personal profile only, for now

Connecting posts as you, a member. Posting as a LinkedIn Company Page needs LinkedIn's separate Community Management application, which Postlyra does not have yet.

What it can post

LinkedIn is the most flexible connector for written content. Text-only posts work, which most platforms here do not allow. Several images can also go up as a native multi-image post, not just one at a time.

Documents are the carousel equivalent: a multi-page PDF that LinkedIn renders as a swipeable deck in the feed. That is what the 300 page cap refers to.

No metrics

LinkedIn posts show no analytics in Postlyra

LinkedIn's member post analytics API ships inside their Community Management API, which is gated behind business verification and approval. Postlyra does not have that access.

So impressions, reactions and comments on LinkedIn posts are not available. Metrics pages will show your other platforms only.

There is no workaround short of LinkedIn granting that access. Check post performance on LinkedIn itself.

Scheduling

LinkedIn has its own posting schedule slots, separate from Instagram's. Set them under Settings, then Content. See Posting schedule.