For the complete documentation index, see llms.txt. This page is also available as markdown.
Posting rules for each platform
Check media limits, per-post settings, quirks and analytics for X, LinkedIn, Facebook, Instagram, Threads, TikTok, YouTube and Bluesky before you post.
On this page
Convia Pro publishes to X (Twitter), LinkedIn, Facebook, Instagram, Threads, TikTok, YouTube and Bluesky, and each platform has its own rules for accounts, media files, per-post settings and analytics. Each section below covers one platform: which accounts connect, what you can post, its media limits and settings, its quirks, and which numbers Convia collects from it. For text limits, tagging and what to do when a post fails, see Publishing to each platform.
Posting to X (Twitter)
Accounts: any X account.
What you can post: text, up to 4 images, or a video. Links go in the text and X builds its own preview.
| Media | Limit |
|---|---|
| Images | Up to 4. JPG, PNG, GIF or WEBP. Up to 5 MB each, or 15 MB for an animated GIF |
| Video | MP4 or MOV, up to 512 MB, from 0.5 to 140 seconds |
| Aspect ratio | Between 1:3 and 3:1 |
Quirks:
- X counts every link as 23 characters, however long it is, and so does Convia.
- A first comment is posted as a reply to your own post.
Analytics: impressions, likes, replies and reposts. A new post is refreshed once a day for its first nine days, checked again at two weeks and one month, and keeps its one-month numbers after that. Add existing post is not available for X.
Posting to LinkedIn personal profiles
Accounts: personal LinkedIn profiles, connected as LinkedIn.
What you can post: text, images (up to 20), video, link posts and PDF documents, which LinkedIn shows as a swipeable carousel.
| Media | Limit |
|---|---|
| Images | Up to 20. JPG, GIF or PNG, up to 5 MB each. Animated GIFs up to 250 frames |
| Video | MP4 only, from 75 KB to 500 MB, from 3 seconds to 30 minutes |
| PDF document | Up to 100 MB and 300 pages |
Quirks:
- Some landscape PDFs fail in LinkedIn's own document processing, even when uploaded on LinkedIn directly. Portrait PDFs work reliably.
- First comments are not available on personal profiles. They work on company pages through LinkedIn Company.
- The mention picker tags organizations, not people.
Analytics: Convia does not collect post performance for personal profiles. LinkedIn analytics come from company pages connected as LinkedIn Company, and a personal profile's card can offer Enable analytics to connect one. Posts from personal profiles cannot be brought in with Add existing post.
Posting to LinkedIn Company Pages
Accounts: LinkedIn Company Pages, connected as LinkedIn Company in Add Account. You sign in as an admin of the page and pick it, and any admin of the page can reconnect it later. Whether your plan includes LinkedIn Company shows in Add Account.
What you can post: the same as personal profiles: text, up to 20 images, video, link posts and PDF documents, with the same media limits as LinkedIn personal profiles.
Quirks:
- First comments are supported, up to 1,250 characters, and can tag organizations.
Analytics: impressions, reach, reactions, comments and shares. LinkedIn reports company page statistics over a rolling 12 months, and Convia tracks your 100 most recent posts per account; older posts keep the numbers already collected. A new post is refreshed once a day for its first nine days, checked at two weeks and one month, and keeps its one-month numbers after that. Posts you published on LinkedIn directly can be brought in with Add existing post, and arrive as published with their original date.
Posting to Facebook Pages
Accounts: Facebook Pages only. On plans with one account per platform, you connect a single Page. Reconnecting keeps the card on the same Page.
What you can post: text, a single image, video, and link posts. Facebook does not offer multi-image carousels for organic Page posts.
| Media | Limit |
|---|---|
| Images | JPEG, PNG, GIF, BMP or TIFF, up to 30 MB |
| Video | MP4 or MOV, up to 4 GB, from 3 seconds to 240 minutes, at up to 30 frames per second |
| Video title | Up to 255 characters, from the Published title |
Quirks:
- Fill in the Published title on video posts. Leave it blank and the internal name is used as the public title.
- An
@in a Facebook post does not link to anyone. - First comments need the Page to have granted permission to comment.
Analytics: reactions on every post, and shares on Page posts. Facebook does not report shares on videos, so videos show a dash. Comments, views, reach and watch time depend on the permissions the Page granted when it connected; Convia shows a prompt on accounts that need to reconnect for them. A new post is refreshed twice a day for two weeks, checked at two weeks and one month, then once a month. Add existing post is available.
Posting to Instagram
Accounts: Professional or Business Instagram accounts.
What you can post: a single image, a carousel, or a video. Instagram requires media, so there are no text-only posts. A video publishes as a Reel unless you choose Story.
| Media | Limit |
|---|---|
| Images | JPEG or PNG, up to 8 MB, 320 to 1,440 pixels wide, aspect ratio between 4:5 and 1.91:1 |
| Carousel | 2 to 10 items, images and videos mixed |
| Reels | MP4 or MOV, from 3 seconds to 15 minutes. Portrait 9:16 is accepted |
| Story video | Up to 60 seconds and 100 MB |
Settings per post, in the composer's Privacy & additional settings card:
- Publish as: Reel or Story (24 hours). A story disappears after 24 hours and takes no caption and no first comment, because Instagram shows neither on a story.
- Also show in feed: on by default for every reel. Off keeps the reel in the Reels tab only, out of your profile grid and followers' feeds.
- Trial reel: off by default. A trial reel is shown to people who do not follow you first, and you decide in Instagram later whether to share it with followers. Instagram requires around 1,000 followers; if your account is not eligible, the reel publishes as normal.
Set any of these as the account's default under Default publishing settings on its card in Social Channels. New posts start with those values; existing drafts and scheduled posts keep their own. In the approval queue, posts that publish differently carry a chip: Story · 24h, Reels tab only or Trial reel.
Analytics: likes and comments. Views, reach and saves depend on the permissions the account granted when it connected; reconnecting turns the rest on. Instagram does not report shares or reposts to anyone, and story performance is not measured. A new post is refreshed twice a day for two weeks, checked at two weeks and one month, then once a month. Add existing post brings in feed posts and reels, not stories.
Posting to Threads
Accounts: Professional or Business Threads accounts.
What you can post: text, images, a carousel, or video.
| Media | Limit |
|---|---|
| Images | JPEG or PNG, up to 8 MB, 320 to 1,440 pixels wide |
| Video | MP4 or MOV, up to 1 GB, from 1 second to 5 minutes |
| Carousel | 2 to 20 items, images and videos mixed |
Quirks:
- A first comment is posted as a reply, and needs the account to have granted permission to reply.
- If Threads refuses a video, the publishing log names the file size and what to do next.
Analytics: views, likes, replies and reposts. The numbers depend on the insights permission the account granted when it connected. A new post is refreshed twice a day for its first nine days, checked at two weeks and one month, then once a month. Add existing post is available.
Posting to TikTok
Accounts: Creator or Business TikTok accounts.
What you can post: videos, and photo posts of one or more images. There are no text-only posts and no first comments.
| Media | Limit |
|---|---|
| Photos | JPEG or WebP only (PNG is not accepted), up to 20 MB, at most 1,080 × 1,920 pixels. Larger images are refused when you attach them |
| Photo carousel | 2 to 35 images |
| Video | MP4, WebM or MOV, up to 4 GB and 10 minutes |
Settings TikTok requires, in the composer's Privacy & additional settings card:
- Who can view this post: Everyone, Friends (mutual follows), Followers or Only me. Only the options TikTok offers for your account appear, and you must choose one.
- Allow comments, Allow Duet and Allow Stitch, each off until you turn it on. Duet and Stitch are hidden on photo posts, and any you have turned off in TikTok itself are unavailable.
- Disclose: this content promotes yourself, a brand, product, or service. Turn it on, then choose Your brand, Branded content, or both. TikTok labels the post as promotional content or a paid partnership. Branded content cannot be set to Only me.
- A consent line confirms you agree to TikTok's Music Usage Confirmation, and its Branded Content Policy when the post is branded.
Set defaults for these on the account's card under Default publishing settings. Posts written by automations start from those defaults, and show Only me unless set in the approval queue when no audience has been chosen. AI assistants connected to Convia cannot choose the privacy level or branded-content disclosures; those stay with you.
Quirks:
- TikTok gives a video its public link only after its own review, which can take a while. When the link arrives late, Convia finds the video on your account and adds the View on TikTok link, as long as it can tell which video belongs to the post.
- If TikTok refuses a post because the account is posting too often, Convia flags the post and tries again about three hours later, up to two times, before marking it failed for review.
- If TikTok stops accepting a connection, the post editor and Social Channels say so and offer Reconnect.
Analytics: views, likes, comments and shares. Accounts connected before analytics launched show Enable analytics on their card; one click reconnects with analytics access. A new post is refreshed twice a day for its first nine days, checked at two weeks and one month, then once a month. Add existing post is available.
Posting to YouTube
Accounts: any YouTube channel.
What you can post: videos only. Shorts are posted from the composer, campaigns and automations; full episodes are published from the episode's Distribution page.
| Item | Limit |
|---|---|
| Video formats | MP4, MOV or WebM |
| Title | Up to 100 characters |
| Description | Up to 5,000 characters |
| Tags | Up to 500 characters in total |
Settings per post: Visibility (Public, Unlisted (anyone with link) or Private (only you)), a Scheduled publish time for private videos, Made for Kids (required by YouTube, off unless you turn it on), Category (People & Blogs unless you choose another), Tags, Default audio language and a playlist. AI assistants connected to Convia cannot set Made for Kids.
Quirks:
- A title over 100 characters, or a description over 5,000, stops the upload with a message saying which is too long, instead of uploading with the end cut off. A post with no title takes one from the start of its text.
- A custom thumbnail, end screens and a Short's related video can only be set in YouTube Studio once the video is on YouTube. Finish on YouTube uploads early so you can do this.
- Deleting a post in Convia leaves the video on YouTube.
Analytics: views, likes, comments, watch time and subscriber changes, plus thumbnail impressions and click-through rate, which YouTube reports about two days behind. A new video is refreshed twice a day for two weeks, checked at two weeks and one month, then once a week. Add existing post is available.
For finishing Shorts, the related-video routine and changing a video's public time, see YouTube publishing.
Posting to Bluesky
Accounts: any Bluesky account, connected with your handle and an app password you create in your Bluesky settings. There is no sign-in redirect. Bluesky is not offered on the Client Portal's Your Channels page for that reason.
What you can post: text, up to 4 images, one video, and link posts with a link card.
| Media | Limit |
|---|---|
| Images | Up to 4, JPEG or PNG. Bluesky shows several images as a grid, not a carousel |
| Video | One MP4 per post, up to 100 MB and 3 minutes |
Quirks: a first comment is posted as a reply to your post.
Analytics: likes, replies, reposts and bookmarks, which Convia shows as saves. Bluesky reports no views or reach anywhere, so Bluesky posts have engagement counts but no engagement rate. A new post is refreshed twice a day for its first nine days, checked at two weeks and one month, then once a month. Add existing post is available.
Related
- Publishing to each platform: supported platforms, text limits, tagging, and what to do when a post fails.
- Connect social accounts: add, connect, reconnect and remove the accounts these rules apply to.
- Posts: the composer, the Privacy & additional settings card and first comments.
- YouTube publishing: Finish on YouTube and finishing Shorts in YouTube Studio.
- Analytics: how the numbers each platform reports are shown and compared.