Posting rules by platform

On X, the length depends on the account's own X plan, which Buzzmark reads from X while you write. A Buzz that goes to a free and a paid X account with the same text keeps to the free account's length.

In Analytics, a number a platform doesn't report shows as a dash, never as 0.

A thread is one Buzz made of several posts that go out as a chain, each replying to the one before. Press Add to thread under a post, or ⌘↵ (Ctrl+Enter on Windows) in the last post, to add the next one.

On a platform without threads, the posts are joined into one post when it goes out, and the preview shows them joined. To give that platform different text, see A version per platform.

Some platforms let only certain accounts post from another app. That's the platform's rule, and the account connects once it meets it.

• Instagram: Business and Creator accounts only. A personal account can switch in the Instagram app, under Settings, Account type and tools, then connect again.
• Threads: a Threads profile linked to an Instagram Business or Creator account.
• Facebook: Pages only, never a personal profile. You pick the Page after you sign in, and you need to be its admin.
• LinkedIn: you post as yourself or as a page you manage. To post as both, connect LinkedIn twice.
• TikTok: personal and business accounts both work.

See Connect your accounts for the steps.

When a picture won't show whole on a platform, the composer gives a tip: a Tall or Wide badge on the picture and a line under it in that platform's words. The Buzz still goes out. Instagram's feed is the exception: it refuses a picture outside its range, so crop it or post it as a story.

Outside its shapes, a picture still posts everywhere except Instagram's feed. Facebook crops a taller one in the feed, TikTok shows bands around it, an Instagram story leaves blank space around it, and LinkedIn, Threads and X post it outside their recommended shapes.

A picture stored in Buzzmark, such as one from Ideas, Weekly plan, the Library or a Hive profile, gets Frame it in its tip. Drag and zoom to choose what stays, then press Use this frame, and that platform gets its own cropped copy. Or press Skip Instagram for this picture, with the platform's name, to take that platform off the Buzz. Your original never changes. Crop a picture from your device before you upload it. More in Pictures and video.

TikTok asks for a few settings on every post sent from an app. They're under On TikTok in the Schedule and Drop a Buzz popovers while a TikTok account is picked.

Scheduling or posting to TikTok means you agree to TikTok's Music Usage Confirmation, plus its Branded Content Policy for a paid partnership. The line under the settings links both.

On a photo post, TikTok shows the caption's first line as the title, up to 90 characters and without hashtags, and the whole caption under it.